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. 2011 Aug 5;13(4):519–547. doi: 10.1208/s12248-011-9290-9

BDDCS Applied to Over 900 Drugs

Leslie Z Benet 1,, Fabio Broccatelli 1,2, Tudor I Oprea 3,4,5
PMCID: PMC3231854  PMID: 21818695

Abstract

Here, we compile the Biopharmaceutics Drug Disposition Classification System (BDDCS) classification for 927 drugs, which include 30 active metabolites. Of the 897 parent drugs, 78.8% (707) are administered orally. Where the lowest measured solubility is found, this value is reported for 72.7% (513) of these orally administered drugs and a dose number is recorded. The measured values are reported for percent excreted unchanged in urine, LogP, and LogD7.4 when available. For all 927 compounds, the in silico parameters for predicted Log solubility in water, calculated LogP, polar surface area, and the number of hydrogen bond acceptors and hydrogen bond donors for the active moiety are also provided, thereby allowing comparison analyses for both in silico and experimentally measured values. We discuss the potential use of BDDCS to estimate the disposition characteristics of novel chemicals (new molecular entities) in the early stages of drug discovery and development. Transporter effects in the intestine and the liver are not clinically relevant for BDDCS class 1 drugs, but potentially can have a high impact for class 2 (efflux in the gut, and efflux and uptake in the liver) and class 3 (uptake and efflux in both gut and liver) drugs. A combination of high dose and low solubility is likely to cause BDDCS class 4 to be underpopulated in terms of approved drugs (N = 53 compared with over 200 each in classes 1–3). The influence of several measured and in silico parameters in the process of BDDCS category assignment is discussed in detail.

Electronic supplementary material

The online version of this article (doi:10.1208/s12248-011-9290-9) contains supplementary material, which is available to authorized users.

Key words: BDDCS, biowaiver, dose number, extent of metabolism, permeability rate


In 2005, Wu and Benet (1) introduced the Biopharmaceutics Drug Disposition Classification System (BDDCS). Wu and Benet recognized that there was a very strong correlation between the intestinal permeability rate and the extent of metabolism. For example, Benet et al. (2) noted that for the 29 drugs and endogenous substances for which human jejunal permeability rate measurements were available, there was an excellent correlation between these permeability rate measurements and the extent of drug metabolism in humans. Fourteen of the 16 drugs exhibiting human intestinal permeability rates greater than metoprolol were extensively metabolized, while 11 of 12 drugs showing permeability rates less than metoprolol were poorly metabolized. Two drugs showing disparity between the permeability rate and metabolism, cephalexin and losartan, exhibit permeability rates that differ by no more than 16% from metoprolol (2). Since the coefficients of variation for the human permeability parameters range from 29% to 130%, these borderline compounds may in fact also have followed the correlation. The correlation between the extent of metabolism and human intestinal jejunal permeability was markedly better than that observed for intestinal jejunal permeability and partition coefficient by Takagi et al. (3), who noted that Log P measured and calculated correctly predict high versus low permeability only about two thirds of the time. Wu and Benet (1) reasoned that it might be easier to utilize metabolism in assigning drug classification since it is difficult and expensive to determine human intestinal permeabilities and since it is also difficult to obtain quantitative mass balance measures that show ≥90% absorption, the FDA criterion for a biowaiver as defined in the FDA BCS Guidance (4), based on the work of Amidon et al. (5). Therefore, in proposing the BDDCS classification system, Wu and Benet (1) substituted extensive and poor metabolism for high and low permeability in the BCS while utilizing the same criteria as the FDA for high and low solubility. That is, a high solubility compound at the highest marketed dose strength would be soluble in 250 mL of water over the pH range of 1–7.5 at 37°C. Using the BDDCS, Wu and Benet (1) classified 168 drugs based on the extent of metabolism and solubility.

BDDCS VERSUS BCS

Although BDDCS grew out of the FDA’s BCS Guidance (4), Wu and Benet (1) proposed BDDCS as a means to predict the drug disposition characteristics of novel chemicals (here, referred to as “new molecular entities”, NMEs) during the early stages of drug discovery and development. Such examples will be discussed below. Recently, Benet and Larregieu (6) reviewed the differences between BCS and BDDCS in terms of purpose and basis. The purpose of BCS is to facilitate biowaivers of in vivo bioequivalence studies for drugs that exhibit no significant intestinal absorption problems. In contrast, the purpose of BDDCS is to predict the drug disposition of NMEs as well as potential drug–drug interactions for NMEs and drugs on the market with respect to the intestine and liver. Very recently, a consensus paper with respect to BCS, BDDCS, and regulatory guidances has been published (7).

Both BCS and BDDCS use the same criteria for solubility. Therefore, there is no difference in the basis between the two systems with respect to this parameter. As noted above, BDDCS predictions and classification are based on the intestinal permeability rate, not the extent of permeability. There is some ambiguity with respect to the basis for BCS, as reviewed by Benet and Larregieu (6). The initial permeability studies of Amidon, Lennernäs, and colleagues (5,8), as summarized by Takagi et al. (3), show a good correlation between human intestinal permeability rate and the extent of absorption, as detailed earlier in the first paragraph of this paper. However, the criterion listed in the FDA BCS Guidance (4) is “…a drug substance is considered to be highly permeable when the extent of absorption in humans is determined to be 90% or more of an administered dose based on a mass balance determination or in comparison to an intravenous reference dose” [emphasis added by the FDA]. Although permeability rate methods are listed in the FDA BCS Guidance (4), we are unaware of any drug that has been certified by the FDA as class 1 eligible for in vivo biowaiver where there is no confirmatory ≥90% absorption data. This ambiguity does not exist in the Guideline on the Investigation of Bioequivalence issued in 2010 by the European Medicines Agency (EMA), which only allows in vivo biowaivers based on the extent of absorption (9). This difference in the permeability basis between BCS and BDDCS is brought home in a recent publication by FDA scientists (10). Chen and Yu (10) note that the FDA has classified as “highly permeable” a number of drugs where absorption is ≥90% in humans, but the measured permeability rates of these compounds are less than that for metoprolol (cefadroxil, cephradine, levofloxacin, loracarbef, ofloxacin, and sotalol), and in one case (pregabalin), the measured permeability rate is less than that for mannitol. As previously recognized (3), BCS is influenced by transporter effects. For example, large amino acid transporter-1 (LAT-1) is expressed in Caco-2 cells (11), and pregabalin is a LAT-1 substrate as noted in the package insert (12), which may explain this discrepancy. Since pregabalin is a zwitterion, its high oral bioavailability (≥90%) may be attributed to LAT-1 transport, an effect that is not taken into account by BCS. Thus, although in general drugs exhibiting high intestinal permeability rates show a high extent of absorption and a high extent of metabolism in both BCS and BDDCS, there are a number of drugs that could be classified as highly permeable in the BCS system based on absorption ≥90% but would be predicted to be poorly metabolized based on the low intestinal permeability rate, the basis for BDDCS classification. By evaluating metabolism, not permeability, BDDCS is not subject to variability due to transporter effects.

In general, classification of drugs between BCS and BDDCS only differ about 5–10%. However, for class 1 drugs where FDA has granted biowaivers, we estimate that the difference between BCS and BDDCS occurs for about 40% of drugs. We cannot make a more accurate estimate since the listing of all drugs granted biowaivers by the FDA is confidential. The percentage difference is high due to the ease in determining whether a drug is >90% absorbed (class 1 in BCS) when a drug is almost completely eliminated unchanged in the urine (class 3 in BDDCS).

BDDCS AND ITS USE

In 1995, Wu and Benet (1) reviewed 131 drugs that had been classified into the four BCS categories in the literature through the end of 1994. Ten of these drugs had been listed in different classes by different authors. Wu and Benet (1) recognized that the major route of elimination in humans for the great majority of high-permeability class 1 and class 2 drugs was metabolism, while the major route of elimination for the poorly permeable class 3 and class 4 drugs in humans was renal and biliary excretion of unchanged drug. They also noted that the major route of elimination via cytochrome P450 3A4 (CYP3A4) was only observed for the class 1 and class 2 drugs and that for the class 3 and class 4 drugs CYP3A4 was not a major contributor to elimination for any. Since the extent of metabolism is better characterized than the extent of absorption, for marketed drugs, Wu and Benet proposed that in BDDCS, drugs be categorized in terms of the extent of metabolism and solubility versus permeability rate and solubility (1). This immediately eliminated the situation where drugs were classified in more than one class because of the uncertainty of permeability measures from study to study. The implication from the BDDCS for an NME is that if a surrogate measure of intestinal absorption rate is available, such as permeability rate through a Caco-2 cellular system, it would be possible to predict the major route of elimination for this new molecular entity in humans prior to its in vivo dosing to either animals or humans. Work is ongoing in our laboratory to determine the degree of accuracy in predicting BDDCS class for an NME based only on in vitro permeability measures prior to studies determining the extent of metabolism. Thus, Benet and Wu (1) proposed the BDDCS as shown in Fig. 1 with ≥70% metabolism being the cutoff for extensive metabolism. They also noted that there were relatively few drugs where the extent of metabolism was between 30% and 70% and that most drugs are either very highly metabolized or very poorly metabolized.

Fig. 1.

Fig. 1

The Biopharmaceutics Drug Disposition Classification System (BDDCS) as proposed by Wu and Benet (1)

Figure 2 summarizes the predictions from BDDCS related to the effects of enzymes and transporters in the gut and liver following oral dosing of drugs (1,13). For class 1, highly soluble—high permeability rate—extensively metabolized drugs, transporter effects in the intestine and the liver have no clinical impact. Even compounds like verapamil, which can be shown in certain cellular systems (e.g., MDR1-MDCK) to be a substrate for P-glycoprotein (P-gp), exhibit no clinically significant P-gp substrate effects in the gut and the liver. Thus, a major proposition of BDDCS is that although class 1 drugs may be shown in cellular systems to be substrates for transporters found in the intestine and the liver, this has no clinical relevance. However, a caution is in order here. At this time, BDDCS predictions only apply to the intestine and the liver since class 1 drugs could be substrates for transporters at the blood–brain barrier and in the kidney.

Fig. 2.

Fig. 2

Transporter effects predicted by BDDCS following oral dosing

From Fig. 2, it can be seen that for class 2 drugs, efflux transporter effects will predominate in the intestines. Thus, transporter–enzyme interplay will be primarily important for class 2 compounds that are substrates for CYP3A and phase II gut enzymes (e.g., glucuronosyltransferases, sulfotransferases), where efflux transporter effects can control the access of the drug to the gut enzymes. BDDCS predicts that both uptake and efflux transporters can affect class 2 drug disposition in the liver. Thus, inhibition or induction of uptake hepatic transporters such as the SLCOs (OATPs) and the SLC22As (OATs and OCTs) as well as the drug efflux hepatic transporters ABCB1 (P-gp), ABCG2 (BCRP), and ABCCs (MRPs) can lead to changes in hepatic metabolism even when hepatic enzymes are unaffected.

BDDCS predicts that for class 3, highly soluble—poor permeability rate—poorly metabolized drugs, uptake transporters will be important for intestinal absorption and liver entry for these poorly permeable compounds (Fig. 2). However, once these drugs get into the enterocyte or the hepatocyte, efflux transporter effects can also occur. Similarly, uptake and efflux transporter effects would be expected for the poorly soluble class 4 compounds. Because they are numerically underrepresented, one might expect that class 4 drugs are more difficult to manage therapeutically, i.e., there are transporter effects just as in class 2, except these drugs are not significantly metabolized. As will be shown subsequently, plotting the maximum recommended therapeutic daily dose (14) versus BDDCS and looking at the “actives” (low dose) versus “inactives” (high dose, safer) revealed no such relationship. It is more likely that fewer drugs are represented in class 4 because of the combined negative characteristics of high dose and (comparatively) low solubility, which leads to high variability. Since the FDA criteria for solubility is measured in water, we suspect that the approved class 4 drugs have adequate solubility in the natural surfactant containing intestinal fluids.

Details and explications for the predictions in Fig. 2 have been presented in recent reviews from the Benet lab (13,15,16). However, in large part, the predictions in Fig. 2 were based on clinical and experimental observations. That is, we are unaware of any clinically significant effects of the uptake and efflux transporters in the gut and liver on class 1 drugs, even when such drugs have been shown in cellular systems or other organs besides the gut and the liver to be substrates of the uptake and efflux transporters. These effects, however, might become relevant in overdosage situations, e.g., when combined with strong inhibitors of their respective metabolizing enzyme, when liver failure is manifest, or when accidentally overdosed. Similarly, we are unaware of the clinically significant effects of the uptake transporters in the gut for class 2 drugs even when these drugs are shown to be substrates of uptake transporters in the liver.

BDDCS also allows potential drug–drug interactions to be predicted (16,17). For class 1 drugs, only metabolic interactions need to be considered in the intestine and the liver. For class 2 drugs, metabolic, efflux transporter, and efflux transporter–enzyme interplay in the intestine must be taken into consideration, while in the liver, metabolic, uptake transporter, efflux transporter, and transporter–enzyme interplay (both uptake and efflux) can occur. For class 3 and class 4 drugs, uptake transporter, efflux transporter, and uptake–efflux transporter interplay will be of major importance.

BDDCS classification may also be useful in predicting the effect of high-fat meals on the extent of bioavailability (F) for an NME. In general, F for class 1 drugs is unaffected by high-fat meals; F is generally increased for class 2 drugs and generally decreased for class 3 drugs (18). Custodio et al. (19) have observed that these findings would be the outcomes expected if a component of high-fat meals inhibited both the uptake and efflux transporters. However, even if this were true, high-fat meals would be expected to have many other effects than inhibiting transporters. We estimate that the predicted effect of high-fat meals on F is only correct about 70% of the time.

CAUTION

It is surprising that such a simple four-category process as indicated in Fig. 2 works so well in predicting drug disposition, transporter–enzyme effects, and drug interactions. It is obvious, however, that this simple four-category system will not predict every interaction. BDDCS does not propose that every drug in the class will be substrates or not substrates for the uptake and efflux transporters. Rather, BDDCS helps prioritize what interactions should and should not be investigated. For example, the class 2 drug felodipine has been shown not to be affected by the intestinal or hepatic efflux transporters (20). Recently, our laboratory has shown the importance in humans of hepatic uptake transporters for the drugs atorvastatin and glyburide (21,22). These interactions were predicted based on cellular, isolated organ, and animal studies (2224). Even when such preliminary studies confirm BDDCS predictions, this may not always be the case. Warfarin is a class 2 drug and, thus according to BDDCS, may be a substrate for a hepatic uptake transporter. In vitro studies in human and rat hepatocytes showed that rifampin would decrease warfarin metabolism by 30% (25), a similar extent to that found for our in vitro results with glyburide (22). However, our recently published study examining the effects of a single dose of rifampin on the pharmacokinetics of warfarin in healthy volunteers showed that OATP uptake in vivo in humans was not clinically significant for warfarin (25). Similarly, although warfarin appears to be both a substrate and inhibitor of liver-bound P-gp (26), this has not been regarded as clinically significant; one P-gp haplotype, however, is clearly associated with low-dose warfarin in a 201 patient sample (27). This emphasizes again the caution that BDDCS only predicts with respect to transporters what might occur, but not that the effect will always occur. Furthermore, our example above (25) reinforces the well-recognized concept that observations in cellular systems and animal models must be tested in vivo in humans before the significance of the effect is assumed.

WHY DID WE PREPARE THIS PAPER?

Wu and Benet (1) recognized that the FDA’s BCS approach (4) held the potential for predicting the drug disposition characteristics and drug interactions for NMEs as well as for drugs on the market. The use of BDDCS in the area of systems chemical biology (28) has been previously outlined (29), and computational models to assign BDDCS class from molecular structure have been proposed (30). However, to test the usefulness of BDDCS, to examine patterns within the BDDCS classes and among them, and to gain further perspectives, it is necessary to compile a large database, at least with respect to drugs that have reached the market. Since BDDCS makes predictions related to hepatic elimination in addition to intestinal absorption, such a database should include as many drugs as possible where systemic concentrations are relevant. Thus, approximately one quarter of the drugs categorized here are administered exclusively by non-oral routes. We also felt strongly that the information provided in the database should be based, where available, not only on the in silico predictions of those parameters but also on experimental values. We noted that many of the solubility values used in BCS analyses are frequently in silico predictions of solubility. For example, in the often quoted paper of Willmann et al. (31) describing a physiological model for the estimation of the fraction dose absorbed in humans, the measured solubility values were only included for only 22 of the 126 drugs evaluated. The solubility for the great majority of the drugs utilized in the Willmann et al. (31) analysis came from the compilation of Zhao et al. (32). These latter workers evaluated human intestinal absorption data for 241 drugs (32). Of the 241 drugs, Zhao et al. compared the experimental results for 26 of the compounds with the predicted solubility utilizing the method of Meylen et al. (33) based on octanol water partition coefficients. For these 26 drugs, the measured versus calculated solubility differs by a factor of 5.7 ± 6.0-fold, the greatest difference being 23-fold. Thus, at present, in silico methodologies for aqueous solubility prediction are not sufficiently accurate for the BDDCS analysis not only due to the inherent limitations of such methods but also to its definition, i.e., BDDCS solubility categorization depends on the maximum strength dose and the effect of pH. Experimental solubility values were included in this compilation wherever they could be found in the literature (577 drugs). Qualitative evaluations such as “practically insoluble in water,” which relate to upper limits, and “highly soluble in water” were used in the absence of published solubility values from a reliable source and were the basis of the BDDCS assignment when no measured value is listed in the table.

Frequently, large compilations such as the ones presented here are carried out with the assistance of graduate students, postdoctoral fellows, and auxiliary personnel. In our experience, this can lead to unevenness in the quality of the data presented in the table. For each of the drugs listed here, decisions concerning the experimental values to be listed and classification assigned were made during the multiple joint meetings of Drs. Benet and Oprea between February 2007 and February 2011. Then, Dr. Broccatelli captured potential errors by cross-checking many references. Therefore, if there are errors in the parameters or in the assignments, this can only be attributable to the authors.

MEASURED PARAMETERS (IN ORDER OF DIFFICULTY)

Solubility

There are a number of issues concerning the choice of the high versus low solubility criteria and which representative experimental values should be listed. The high solubility criterion that the highest dose strength on the market is soluble in 250 mL or less of water over the pH range 1–7.5 at 37°C was an arbitrary decision made by Amidon et al. (5) and incorporated into the regulatory Guidances (4,9). Wu and Benet (1) found that this cutoff criterion in BCS appeared to work well for BDDCS, and thus, we have continued to use this arbitrary, discriminatory criterion. The FDA criteria (4) require the solubility measurements to be made in water, not simulated intestinal fluid containing a surfactant, and the solubility values listed in the table are values in water. Furthermore, the FDA criteria evaluate the cutoff between high and low solubility using the value for the lowest solubility over the pH range 1–7.5 (realistically measured at pH 1.2, 4.5, and 6.8 as indicated in the FDA Guidance). Furthermore, the solubility is to be measured at 37°C. The values in Tables I, II, III, IV, and V are the authors’ best recommendation based on experimental literature data for the lowest solubility under the conditions listed above. The solubility criteria over the pH range 1–7.5 can create marked differences from compilation to compilation for drugs that are salts. For example, one may find in the package insert for atazanavir sulfate that the drug “is slightly soluble in water (4–5 mg/mL, free base equivalent) with the pH of a saturated solution in water being about 1.9.” Reporting this solubility would lead to the assignment of atazanavir sulfate as a class 1 drug in BCS and BDDCS. However, it is known that atazanavir, as for almost all the protease inhibitors, exhibits very poor solubility in solutions at pH above 5.5, although these solubilities are not reported. Therefore, we list atazanavir sulfate as a class 2 drug and no specific solubility is listed in Table II. Another example of a basic drug is imatinib mesylate (and other kinase inhibitors) where the package insert states “Imatinib mesylate is soluble in aqueous buffers ≤pH 5.5 [a published value of 200 mg/mL can be found] but is very slightly soluble to insoluble in neutral/alkaline aqueous buffers.” Therefore, we list this drug in Table II as class 2 with a solubility of 1 mg/mL, determined at pH 7.4. Similar variances can occur for acidic drugs where solubility may be very low at pH 1. This concern that the pH range maybe too restrictive has been addressed (34) and explicated (35) previously for acidic drugs. Individual references are not given for the solubility values because in many cases the values in the tables are the authors’ consensus view of the appropriate value based on a number of experimental results as discussed above. This is a technique followed by Dr. Benet when he first introduced the table of pharmacokinetic parameters in Goodman and Gilman and represents a decision of the two senior authors alone in reviewing all of the literature data that they could find. A single solubility value is given in the five tables in milligrams per milliliter.

Table I.

Measured and In Silico Data for 351 BDDCS Class 1 Drugs

Generic name Maximum strength dose value Maximum strength dose unit Formulation Route Measured solubility (mg/mL) Dose number % Excreted unchanged in urine MW drug Measured LogS molar Measured LogP Measured LogD 74 minVSLgS 3–7.5 CLogP HBA HBD PSA
Abacavir sulfate 300 mg Tablets Oral 77 0.02 1.2 286.34 −0.57 1.20 1.20 −3.07 0.81 6 3 95.80
Acarbose 100 mg Tablets Oral 1 645.62 −8.83 3.30 −6.66 19 14 351.80
Acebutolol hydrochloride 400 mg Capsules Oral 10 336.43 1.71 0.19 −1.46 1.71 5 3 97.05
Acetaminophen; paracetamol 1000 mg Tablets Oral 23.7 0.2 3 151.17 −0.80 0.20 0.40 −1.66 0.49 2 2 55.41
Acetohexamide 500 mg Tablets Oral 3.43 0.6 324.40 −1.98 2.44 −0.36 −3.13 2.25 4 2 103.22
Acetylsalicylic acid; aspirin 500 mg Tablets Oral 10 0.2 1.4 180.16 −1.26 1.19 −2.57 −0.94 1.02 3 1 68.21
Adenosine 3 mg/mL Solution Injection (i.v.) 5 0 267.25 −1.73 −0.98 −1.10 −1.37 −2.16 8 4 135.44
Alfacalcidol 1 μg Capsules Oral 8 400.65 −5.86 8.24 2 2 45.12
Alfentanil 0.5 mg/mL Solution Injection (i.v.) 0.5 416.53 2.16 2.10 −4.12 2.13 6 0 77.73
Alfuzosin 10 mg Tablets Oral 11 389.46 −1.18 −3.80 2.55 8 2 108.88
Aliskiren 300 mg Tablets Oral 350 0.003 25 551.77 −0.20 2.45 −3.09 3.51 7 4 156.62
Alosetron 1 mg Tablets Oral 61 0.00007 6 294.36 −0.68 −3.26 1.74 2 1 44.23
Alprazolam 2 mg Tablets Oral 0.073 0.1 20 308.77 −3.63 2.12 1.26 −3.68 2.56 3 0 33.27
Alprenolol 200 mg Tablets Oral 50 0.02 0.5 249.36 −0.70 3.10 1.34 −0.86 2.65 3 2 46.24
Ambrisentan 10 mg Tablets Oral 0.06 0.7 5 376.46 −3.80 −3.35 3.33 5 1 70.11
Ambroxol 30 mg Tablets Oral 10.9 0.01 8 364.08 −1.52 −2.44 2.66 3 3 64.50
Amifostine 5 mg/mL Solution Injection (i.v.) 0.69 214.22 −1.04 3.12 −1.85 5 4 106.66
Aminophenazone; aminopyrine 300 mg Tablets Oral 55.55 0.02 231.30 −0.62 1.00 −2.23 1.04 3 0 26.79
Amitriptyline hydrochloride 150 mg Tablets Oral 1000 0.0006 1 277.41 0.50 4.92 2.95 −2.29 4.85 1 0 1.18
Amlodipine 10 mg Tablets Oral 10 408.89 3.00 1.68 −1.79 3.43 5 2 105.47
Amoxapine 150 mg Tablets Oral 313.79 −2.43 3.41 3 1 34.47
Amsacrine 33.33 mg/mL Solution Injection (i.v.) 10 393.47 −1.37 4.69 5 2 85.11
Anastrozole 1 mg Tablets Oral 0.5 0.008 10 293.37 −2.77 −3.60 1.29 4 0 61.36
Anhydrovinblastine; anhydrovincaleukoblastine 1 mg/mL Solution Injection (i.v.) 10 0.0004 0.5 792.98 −1.90 3.70 3.69 −7.12 6.11 8 2 130.05
Antipyrine; phenazone 500 mg Tablets Oral 1700 0.001 0.5 188.23 0.96 0.28 −1.79 0.20 2 0 22.02
Apomorphine 2.56 mg Tablets Injection (s.c.) 20 0.0005 0.3 267.33 −1.13 2.30 −2.73 2.49 3 2 46.92
Asenapine 10 mg Tablets Oral 1 285.78 −2.41 4.58 1 0 10.59
Atomoxetine 60 mg Capsules Oral 27.8 0.009 1.5 255.36 −0.96 −1.14 3.94 2 1 23.68
Azathioprine 100 mg Tablets Oral 10 0.04 1 277.27 −1.44 0.10 0.02 −2.72 0.51 6 1 99.66
Bambuterol 20 mg Tablets Oral 33 0.002 0 367.45 −1.05 1.50 −2.58 −1.56 0.56 4 2 94.24
Benazepril 40 mg Tablets Oral 78 0.002 0.5 424.50 −0.74 1.10 −1.84 1.82 5 2 101.61
Bendamustine 5 mg/mL Solution Injection (i.v.) 1 358.27 −0.83 2.76 4 1 69.78
Benidipine 8 mg Tablets Oral 1.9 0.02 1 535.65 −2.45 −5.69 7.41 0 0 112.85
Benserazide 50 mg Tablets Oral 1 257.25 2.13 −2.90 7 7 169.84
Benznidazole 100 mg Tablets Oral 0.4 1.0 260.25 −2.81 −2.65 0.90 4 1 87.81
Bepridil 400 mg Tablets Oral 5 0.3 0.5 366.55 −1.87 2.00 −4.29 6.20 3 0 10.84
Beraprost 0.04 mg Tablets Oral 19 0.000008 398.50 −1.32 −4.64 2.04 5 3 95.05
Betamethasone 5 mg Tablets Oral 0.066 0.3 4.8 392.47 −3.77 1.94 1.94 −3.61 1.79 5 3 104.22
Betaxolol 20 mg Tablets Oral 0.451 0.2 15 307.44 −2.83 2.81 0.55 −1.66 2.32 4 2 55.03
Bimatoprost 0.30 mg/mL Solution Ophthalmic 0.8 415.58 −2.72 −5.44 1.75 4 4 100.52
Biperiden 2 mg Tablets Oral 1 0.008 311.47 −2.49 4.25 −1.93 4.94 2 1 23.73
Bopindolol 2 mg Tablets Oral 3.3 0.002 0 380.49 −2.06 4.22 −3.92 4.98 3 2 64.71
Bortezomib 1 mg/mL Solution Injection (i.v.) 3.3 384.25 −2.07 −4.09 0.78 6 4 151.53
Brimonidine 2 mg/mL Solution Ophthalmic 1.5 10 292.14 −2.29 0.78 −2.00 1.49 5 2 58.94
Bromazepam 6 mg Tablets Oral 0.17 0.1 316.16 −3.27 2.05 1.54 −3.47 1.70 3 1 52.40
Bromocriptine 5 mg Capsules Oral 0.8 0.03 2 654.61 −2.91 4.59 −6.80 6.58 6 3 118.24
Bromperidol 10 mg Tablets Oral 0.09 0.4 0.5 420.33 −3.67 2.74 3.34 −3.84 4.00 3 1 42.01
Budesonide 3 mg Capsules Oral 0.02 0.6 0 430.55 −4.33 3.20 2.70 −4.71 2.91 6 2 99.25
Buflomedil hydrochloride 300 mg Tablets Oral 23.6 307.39 −0.75 −1.23 2.93 5 0 46.76
Bupivacaine 5 mg/mL Solution Injection (epidural) 0.17 2 288.44 −3.23 3.41 −3.53 3.69 2 1 33.72
Buprenorphine hydrochloride 8 mg Tablets Oral 17 0.002 1 467.65 −1.47 4.98 −3.58 3.99 5 2 64.50
Bupropion 100 mg Tablets Oral 312 0.001 0.5 239.75 0.11 3.27 −1.99 3.21 2 1 32.84
Busulfan (busulphan) 2 mg Tablets Oral 0.1 0.08 1 246.30 −3.39 −0.52 −0.52 −1.20 −0.59 4 0 92.04
Butabarbital 100 mg Tablets Oral 1 212.25 1.65 1.45 −2.42 1.58 3 2 83.96
Butalbital 50 mg Tablets Oral 3.6 224.26 −2.74 1.63 3 2 83.96
Butorphanol 5 mg Tablets Oral 2 0.01 2 327.47 −2.21 2.26 −2.40 3.73 3 2 46.61
Caffeine 65 mg Caplets Oral 21.5 0.01 1 194.19 −0.96 −0.07 −0.07 −1.95 −0.04 3 0 48.50
Capecitabine 500 mg Tablets Oral 26 0.08 3 359.36 −1.14 −3.45 0.84 6 3 124.33
Caprylidene 20000 mg Powder Oral 0 470.70 −7.69 9.97 3 0 81.19
Carbidopa 25 mg Tablets Oral 2.5 0.04 5.3 226.23 −1.96 1.33 −0.45 6 5 132.39
Carmustine 7.70 mg Implant Topical (skin, membranes) 3.8 0.008 0.5 214.05 −1.75 1.53 1.53 −2.50 1.32 2 1 69.78
Caspofungin acetate 6.48 mg/mL Solution Injection (i.v.) 1.4 1093.34 −3.18 −2.95 18 16 454.42
Cefoperazone 2000 mg Powder Injection (i.v.) 29 645.68 −0.74 −2.12 −3.47 −0.22 11 4 227.75
Cerivastatin 0.8 mg Tablets Oral 195 0.00002 24 459.56 −0.37 −2.00 3.56 6 3 104.98
Cetrorelix 3 mg/mL Solution Injection (s.c.) 8 3 1431.07 −2.25 −7.00 −0.40 18 17 543.33
Cevimeline 30 mg Capsules Oral 13.5 199.32 −1.32 1.14 2 0 9.97
Chloral hydrate 500 mg Capsules Oral 8300 0.0002 165.40 1.70 0.99 1.61 −0.77 0.72 2 2 45.12
Chlorambucil 2 mg Tablets Oral 12 0.0007 0.5 304.22 −1.40 3.25 1.59 −0.27 3.63 3 1 41.70
Chloramphenicol 250 mg Capsules Oral 2.5 0.4 5 323.13 −2.11 1.14 1.00 −2.79 1.28 5 3 122.11
Chlordiazepoxide 25 mg Capsules Oral 2 0.05 0.5 299.76 −2.18 2.44 2.19 −2.65 3.79 3 1 45.94
Chlormethiazole; clomethiazole 192 mg Capsules Oral 10 0.08 0.05 161.65 −1.21 2.12 2.12 −1.80 1.68 1 0 10.24
Chlorpheniramine 4 mg Tablets Oral 10 274.80 3.38 1.38 −1.57 3.15 2 0 11.42
Chlorpromazine 200 mg Tablets Oral 400 0.002 0.5 318.87 0.10 5.41 2.82 −2.69 5.30 2 0 1.75
Cilazapril 5 mg Tablets Oral 1 0.02 0 417.51 −2.62 −2.25 −0.78 1.47 6 2 106.36
Cisplatin 1 mg/mL Solution Injection (i.v.) 2.53 2.3 300.06 −2.07 −2.53 −1.68 0 2 75.29
Clemastine 2 mg Tablets Oral 2.3 0.003 5 343.90 −2.17 5.49 3.04 −2.56 5.45 2 0 9.97
Clindamycin hydrochloride hydrate 300 mg Capsules Oral 40 0.03 13 424.99 −1.08 2.16 −2.99 2.57 6 4 110.49
Clobazam 10 mg Tablets Oral 0.188 0.2 300.75 −3.20 2.12 1.90 −3.63 2.44 2 0 37.99
Clofibric acid Active metabolite 45 5.7 214.65 −0.68 2.57 −1.13 −1.63 2.82 3 1 49.94
Clomiphene citrate 50 mg Tablets Oral 1.11 0.2 8 405.97 −2.73 6.70 −4.24 7.15 2 0 10.28
Clomipramine 75 mg Tablets Oral 314.86 5.19 2.76 −2.56 5.92 2 0 1.75
Clonazepam 2 mg Tablets Oral 0.1 0.08 0.5 315.72 −3.50 2.41 2.41 −3.96 2.38 4 1 86.30
Clorazepate 15 mg Tablets Oral 0.5 314.73 −1.13 −2.36 2.51 4 2 82.98
Cocaine 0.1 mg/mL Solution Topical (nasal) 1.6 1 303.36 −2.28 2.30 2.30 −2.85 2.57 3 0 55.30
Codeine monohydrate 60 mg Tablets Oral 435 0.0006 0.1 299.37 0.14 1.19 0.21 −1.40 0.98 4 1 41.94
Colchicine 0.6 mg Tablets Oral 45 0.00005 399.45 −0.95 1.30 1.03 −3.90 1.20 6 1 87.54
Cortisone 25 mg Tablets Oral 0.28 0.4 360.45 −3.11 1.47 1.47 −3.52 1.30 5 2 99.93
Cyanocobalamin (vitamin B12) 5 mg Tablets Oral 12.5 0.002 0.5 1355.40 −2.04 0.05 −1.36 17 9 492.69
Cyclizine 50 mg Tablets Oral 8.7 0.02 0.5 266.39 −1.49 −2.97 3.80 2 0 2.35
Cyclobenzaprine 10 mg Tablets Oral 200 0.0002 0.5 275.40 −0.14 −2.58 5.10 1 0 1.18
Cyclophosphamide 50 mg Tablets Oral 40 0.005 6.5 261.09 −0.81 0.63 0.63 −1.92 0.80 2 1 44.31
Cyproheptadine 4 mg Tablets Oral 3.636 0.004 0.5 287.41 −1.90 4.69 −3.19 5.30 1 0 1.18
Cytarabine 20 mg/mL Solution Injection (i.v.) 11 243.22 −2.51 −2.24 −0.60 −2.20 7 4 133.23
Dabigatran etexilate 110 mg Capsules Oral 1.8 0.2 0 627.75 −2.54 3.80 −7.74 4.13 8 2 146.19
Dantrolene 100 mg Capsules Oral 2 0.2 5 314.26 −2.20 1.70 0.77 −3.44 1.63 5 1 118.74
Darifenacin 15 mg Tablets Oral 12.5 426.56 −3.74 3.62 3 1 56.52
Debrisoquine 20 mg Tablets Oral 29 0.003 12 175.24 −0.78 0.75 −2.96 2.59 0.90 3 2 52.16
Desalkylflurazepam Active metabolite 0.5 288.71 2.70 2.78 −3.78 2.81 2 1 42.15
Desipramine 200 mg Tablets Oral 2 266.39 4.90 1.40 −0.80 4.47 2 1 15.14
Desmethyldiazepam (nordazepam) 10 mg Tablets Oral 0.057 0.7 0.5 270.72 −3.68 2.93 2.93 −3.69 3.02 2 1 42.15
Desogestrel 1.5 mg Tablets Oral 0.32 0.02 0 310.48 −2.99 −4.86 5.68 1 1 22.56
Dexamethasone 0.75 mg Tablets Oral 0.092 0.03 2.6 392.47 −3.63 1.94 1.83 −3.65 1.79 5 3 104.22
Dexmethylphenidate 10 mg Tablets Oral 0.5 233.31 1.80 −0.28 −1.61 2.56 2 1 41.64
Dextromethorphan hydrobromide 60 mg Tablets Oral 15 0.02 0.19 271.41 −1.26 −1.35 3.95 2 0 10.28
Dezocine 15 mg/mL Solution Injection (i.v.) 20 1 245.37 −1.09 1.12 −0.65 3.72 2 2 50.84
Diazepam 10 mg Tablets Oral 0.057 0.7 0.5 284.75 −3.70 2.82 2.99 −3.75 2.96 2 0 28.76
Diclofenac 50 mg Tablets Oral 9 0.02 0.5 296.16 −1.52 4.51 1.13 −3.43 4.73 3 2 54.80
Dihydroquinidine; hydroquinidine 300 mg Tablets Oral 11.1 0.1 18 326.44 −1.51 3.44 1.82 −2.61 3.27 6 3 43.08
Dilevalol 50 mg Tablets Oral 16 2.5 328.41 −1.31 3.09 1.07 −2.09 2.50 4 4 106.25
Diltiazem 120 mg Capsules Oral 2 414.53 2.70 2.22 −3.77 3.65 4 0 56.49
Diphenhydramine 50 mg Capsules Oral 1000 0.0002 2 255.36 0.59 3.27 1.61 −1.84 3.45 2 0 9.97
Dobutamine hydrochloride 12.5 mg/mL Solution Injection (i.v.) 0.1 301.39 −1.85 2.43 4 4 83.19
Dolasetron 100 mg Tablets Oral 0 324.38 −1.96 2.34 3 1 60.48
Dosulepin; dothiepin 75 mg Tablets Oral 500 5 295.45 0.23 4.49 2.76 −2.26 4.53 1 0 1.18
Doxazosin 8 mg Tablets Oral 451.49 0.60 −4.55 3.53 9 1 104.90
Doxepin 100 mg Capsules Oral 0 279.39 4.29 2.37 −2.30 4.09 2 0 10.28
Doxorubicin 2 mg/mL Solution Injection (i.v.) 10 3.5 543.53 −1.74 1.27 1.27 −3.74 0.32 12 6 222.89
Duloxetine hydrochloride 67.3 mg Capsules Oral 0 297.42 −2.22 4.26 2 1 23.68
Eletriptan hydrobromide 40 mg Tablets Oral 4 0.04 5 382.53 −1.98 1.10 −2.30 3.36 3 1 51.90
Enalapril 20 mg Tablets Oral 25 0.003 10 376.46 −1.18 −0.67 0.67 5 2 101.91
Enfuvirtide 90 mg/mL Solution Injection (i.m.) 1000 0 4491.98 −0.65 67 63 2095.89
Epirubicin 2 mg/mL Solution Injection (i.v.) 9.5 543.53 1.27 0.46 −3.77 0.32 12 6 222.89
Ergonovine; ergometrine 0.2 mg Tablets Oral 10 0.00008 325.41 −1.51 −3.07 1.23 3 3 70.55
Ergotamine tartrate 2 mg Tablets Oral 2 0.004 581.68 −2.82 3.69 2.85 −2.74 4.66 6 3 118.24
Escitalopram 20 mg Tablets Oral 8 324.40 −2.94 3.13 3 0 28.67
Esmolol 10 mg/mL Solution Injection (i.v.) 20 0.5 295.38 −1.17 −0.80 1.72 4 2 73.30
Esomeprazole magnesium 20 mg Tablets Oral 0.5 0.2 0.5 345.42 −2.84 2.23 −3.69 2.57 5 1 71.04
Estradiol 2 mg Tablets Oral 0.09 0.09 0.5 272.39 −3.48 4.01 −3.90 3.78 2 2 45.43
Eszopiclone 3 mg Tablets Oral 5 388.82 −2.82 1.25 6 0 79.29
Ethanol 62 mg/mL Solution Oral 2.5 46.07 −0.31 −0.31 1.06 −0.24 1 1 22.56
Ethinylestradiol 1 mg Tablets Oral 3 296.41 3.67 3.67 −4.16 3.86 2 2 45.43
Ethosuximide 250 mg Capsules Oral 39.2 0.03 25 141.17 −0.56 0.38 1.13 −1.24 0.40 2 1 51.12
Etonogestrel 157 μg Tablets (and 68 mg implant s.c) Topical (skin. membranes) 0.51 0.001 0.1 324.47 −2.80 −4.61 5.68 2 1 22.56
Everolimus 1 mg Tablets Oral 0.01 0.4 0 958.25 −4.98 −8.68 7.10 13 3 212.97
Exenatide 0.25 mg/mL Solution Injection (s.c.) 25 4186.66 −2.22 1.61 67 58 1923.78
Famciclovir 500 mg Tablets Oral 250 0.008 0 321.34 −0.11 −2.79 0.09 6 1 113.10
Fentanyl 1.6 mg Lozenge Oral 25 0.0003 8 336.48 −1.13 4.05 2.92 −3.65 3.62 2 0 20.32
Fesoterodine 8 mg Tablets Oral 256 0.0001 0 411.59 −0.21 −1.83 4.36 3 1 51.11
Finasteride 5 mg Tablets Oral 0.043 0.5 0.5 372.56 −3.94 3.03 3.03 −4.38 3.01 2 2 65.69
Fludarabine Active metabolite 24 285.24 −0.80 −2.32 −1.68 −2.01 8 4 135.44
Fludarabine 5′-monophosphate 10 mg Tablets Oral 3.53 0.01 365.22 −2.01 0.64 −3.07 8 4 185.94
Fludrocortisone acetate 0.1 mg Tablets Oral 0.14 0.003 1 422.50 −3.48 1.67 1.67 −4.00 1.54 5 2 104.22
Flumazenil 0.1 mg/mL Solution Injection (i.v.) 0.128 0.5 303.30 −3.37 1.00 0.87 −3.34 1.29 3 0 57.02
Flunitrazepam 1 mg Tablets Oral 0.004 1.0 0.5 313.29 −4.89 2.06 2.06 −3.53 1.78 4 0 72.91
Fluorouracil 25 mg/mL Solution Injection (i.v.) 12.2 5 130.08 −1.03 −0.89 −0.89 −0.62 −0.58 2 2 64.48
Fluoxetine 20 mg Capsules Oral 15.2 0.005 1.25 309.33 −1.31 4.05 1.95 −1.19 4.57 2 1 23.68
Flurazepam 30 mg Capsules Oral 500 0.0002 0.1 387.89 0.11 3.94 2.35 −3.52 4.22 3 0 29.93
Fluvastatin sodium 40 mg Capsules Oral 50 0.003 1.5 411.48 −0.92 3.80 −4.00 4.05 4 3 86.52
Fluvoxamine 100 mg Tablets Oral 14.869 0.03 2 318.34 −1.33 1.12 1.21 −1.68 3.32 4 1 58.37
Formoterol fumarate 12 μg/inhalation Powder Topical (aerosol) 0.66 0.00007 8 344.41 −2.72 −2.00 1.26 5 4 101.65
Fosfluconazole 100 mg Tablets Oral 386.26 0.95 2.41 −0.78 7 2 120.98
Frovatriptan 2.5 mg Tablets Oral 6 243.31 0.42 0.72 2 3 74.79
Galantamine 12 mg Tablets Oral 10 0.005 20 287.36 −1.46 −1.09 1.03 4 1 41.94
Gemcitabine hydrochloride 40 mg/mL Solution Injection (i.v.) 15 8 263.20 −1.24 −0.97 −0.71 6 3 110.67
Glibornuride 25 mg Tablets Oral 0.2 0.5 0.5 366.48 −3.26 2.60 3.53 −3.75 3.70 4 3 107.50
Goserelin 10.8 mg Implant Injection (s.c.) 20 1269.44 −5.55 −2.86 18 18 537.10
Granisetron 1 mg Tablets Oral 100 0.00004 11 312.42 −0.49 −0.85 −1.16 1.72 3 1 47.74
Guanabenz 16 mg Tablets Oral 11 0.006 231.09 −1.32 0.12 −1.38 2.98 4 3 78.44
Heparin; enoxaparin 20 mg/mL Solution (10,000 units/mL) Injection (i.v.) 50 0.5 1134.94 −1.36 −3.81 −9.69 33 15 662.73
Hexobarbital 250 mg Tablets Oral 640 0.002 0.5 236.27 0.43 1.98 1.98 −2.81 1.63 3 1 70.56
Hydralazine hydrochloride 100 mg Tablets Oral 44.2 0.009 8 160.18 −0.65 1.00 0.56 −1.29 0.66 4 2 67.97
Hydrocodone 10 mg Tablets Oral 62.5 0.0006 10.2 299.37 −0.68 1.27 3.38 −1.25 1.13 4 0 37.66
Hydrocortisone; cortisol 20 mg Tablets Oral 0.42 0.2 362.47 −2.94 1.61 1.37 −3.48 1.70 5 3 104.22
Hydromorphone 8 mg Tablets Oral 10 0.003 6 285.35 −1.46 −1.06 0.72 4 1 51.42
Hydroxychloroquine sulfate 200 mg Tablets Oral 200 0.004 27 335.88 −0.23 1.72 −1.64 4.12 4 2 48.25
Hydroxyzine 100 mg Tablets Oral 700 0.0006 0.1 374.91 0.27 3.50 2.37 −3.76 4.00 4 1 33.70
Ibutilide 0.1 mg/mL Solution Injection (i.v.) 100 7 384.59 −0.58 −2.01 3.78 4 2 75.53
Idarubicin 1 mg/mL Solution Injection (i.v.) 3 497.51 1.63 −3.81 0.90 10 5 191.23
Ifosfamide 50 mg/mL Solution Injection (i.v.) 100 10 261.09 −0.42 0.86 0.86 −2.40 0.92 2 1 44.31
Iloprost 5 μg/inhalation Solution Topical (aerosol) 1 0.00002 0 360.50 −2.56 2.97 0.46 −4.40 2.71 4 3 85.95
Imidapril 10 mg Tablets Oral 5 405.45 −0.68 1.53 6 2 121.36
Imipramine 50 mg Tablets Oral 1.5 280.42 4.80 2.20 −2.04 5.04 2 0 1.75
Imiquimod 50 mg/g Cream Topical (skin. membranes) 0.6 1 240.31 −2.60 −2.71 3.24 3 1 48.73
Inamrinone; amrinone lactate 0.25 mg/mL Solution Injection (i.v.) 0.9 25 187.20 −2.49 −0.70 −1.89 −0.69 3 2 70.15
Indapamide 2.5 mg Tablets Oral 0.59 0.02 7 365.84 −2.79 2.09 −3.70 2.96 4 2 102.49
Irinotecan 20 mg/mL Solution Injection (i.v.) 10 16.7 586.69 −1.77 −3.79 2.73 6 1 108.44
Isoniazid 300 mg Tablets Oral 153 0.008 7 137.14 0.05 −0.70 −1.14 −0.67 −0.67 3 2 74.33
Isosorbide 2-mononitrate 10 mg Tablets Oral 1.1 0.04 191.14 −2.24 −0.40 −0.40 −0.83 −0.66 6 1 96.60
Isosorbide 5-mononitrate 20 mg Tablets Oral 1.1 0.07 2.5 191.14 −2.24 −0.40 −0.15 −0.88 −0.66 6 1 96.60
Isosorbide dinitrate 40 mg Tablets Oral 1.089 0.1 236.14 −2.34 1.31 1.31 −2.15 0.22 8 0 130.49
Ivabradine 7.5 mg Tablets Oral 4 468.60 −3.33 3.97 6 0 57.04
Ivermectin 3 mg Tablets Oral 4 0.003 875.12 −2.34 6.82 −8.48 5.39 13 3 173.88
Ketamine 100 mg/mL Solution Injection (i.v.) 200 4 237.73 −0.08 2.18 2.09 −1.35 2.93 2 1 32.84
Labetalol 300 mg Tablets Oral 16 0.08 2.5 328.41 −1.31 1.33 1.08 −2.14 2.50 4 4 106.25
Letrozole 2.5 mg Tablets Oral 0.041 0.2 3.9 285.31 −3.84 −4.71 1.24 4 0 61.36
Leuprolide 45 mg/mL Solution Injection (s.c.) 250 2 1209.43 −0.68 −5.36 −0.99 16 16 464.21
Levamisole 50 mg Tablets Oral 204.30 1.84 1.16 −1.62 1.84 2 0 10.79
Levobupivacaine 7.5 mg/mL Solution Injection (epidural) 0.17 0.2 0.5 288.44 −3.23 3.21 2.66 −3.53 3.69 2 1 33.72
Levodopa 250 mg Tablets Oral 1.65 0.6 0.5 197.19 −2.08 −2.74 −2.39 1.48 −2.82 5 4 114.54
Lidocaine 20 mg/mL Solution Injection (i.v.) 3.58 8 234.34 −1.82 2.44 1.88 −2.09 1.95 2 1 33.72
Linezolid 600 mg Tablets Oral 8 0.3 30 337.35 −1.62 1.80 −3.42 0.17 5 1 70.45
Liraglutide 6 mg/mL Solution Injection (s.c.) 6 3751.29 59 54 1675.18
Lorazepam 2 mg Tablets Oral 0.08 0.1 0.5 321.17 −3.60 2.39 2.39 −3.96 2.37 3 2 64.71
Lorcainide hydrochloride 100 mg Tablets Oral 2.4 0.2 1 370.93 −2.19 4.85 2.84 −2.88 4.48 2 0 20.32
Maprotiline 75 mg Tablets Oral 3.134 0.10 3 277.41 −1.95 4.85 1.43 −1.17 4.52 1 1 14.57
Maraviroc 300 mg Tablets Oral 8 513.68 −3.53 3.26 4 1 57.98
Melatonin 5 mg Tablets Oral 0.1 0.2 232.28 −3.37 −2.78 1.03 2 2 55.92
Melphalan 2 mg Tablets Oral 0.1 0.08 12 305.21 −3.48 −0.11 −0.39 −0.21 4 2 69.67
Meperidine; pethidine 100 mg Tablets Oral 3.22 0.1 13 247.34 −1.89 2.72 1.44 −1.65 2.23 2 0 28.24
Mepivacaine 20 mg/mL Solution Injection (epidural) 2.4 5 246.36 −2.01 1.95 1.75 −2.74 2.10 2 1 33.72
Meprobamate 400 mg Tablets Oral 3.4 0.5 218.25 −1.81 0.70 0.70 −1.53 0.92 2 2 110.07
Mesna 400 mg Tablets Oral 142.20 1.69 −1.55 3 2 59.79
Methadone 10 mg Tablets Oral 120 0.0003 24 309.46 −0.41 3.93 2.07 −2.46 4.17 2 0 19.45
Methohexital 10 mg/mL Solution Injection (i.v.) 100 0.5 262.31 −0.42 2.30 −3.13 1.81 3 1 70.56
Methylergonovine 0.2 mg Tablets Oral 339.44 −3.30 1.76 3 3 70.55
Methylphenidate 20 mg Tablets Oral 233.31 1.80 −0.28 −1.75 2.56 2 1 41.64
Methylprednisolone 32 mg Tablets Oral 0.3236 0.4 4.9 374.48 −3.06 2.18 −3.87 1.74 5 3 104.22
Metoprolol 100 mg Tablets Oral 1000 0.0004 10 267.37 0.57 1.88 0.16 −0.81 1.49 4 2 55.03
Metronidazole 500 mg Tablets Oral 10 0.2 10 171.16 −1.23 −0.02 0.14 −1.43 −0.46 4 1 77.52
Mexiletine 250 mg Capsules Oral 9.5 179.26 2.15 2.15 −0.12 2.57 2 1 37.08
Mianserin 60 mg Tablets Oral 3.4 0.07 5 264.37 −1.89 4.24 2.52 −2.73 3.76 2 0 2.05
Micafungin sodium 10 mg/mL Solution Injection (i.v.) 1 1270.30 −7.93 −2.59 22 16 554.51
Midazolam hydrochloride 2 mg/mL Syrup Oral 10.3 5.6 325.78 −1.55 3.27 1.53 −3.92 3.42 2 0 20.12
Minocycline hydrochloride 100 mg Capsules Oral 50 0.008 11 457.49 −0.96 0.05 0.04 2.53 0.19 9 5 175.38
Minoxidil 10 mg Tablets Oral 2.2 0.02 10 209.25 −1.98 1.24 1.38 −1.86 −0.72 5 2 89.15
Mirtazapine 45 mg Tablets Oral 0.5 0.4 2 265.36 −2.72 −2.31 2.81 3 0 12.29
Misoprostol 0.2 mg Tablets Oral 0.5 382.55 2.91 −5.01 3.07 4 2 90.45
Molindone 50 mg Tablets Oral 2 276.38 −1.77 2.57 3 1 42.21
Morphine hydrochloride 30 mg Capsules Oral 57.14 0.002 4 285.35 −0.75 0.89 1.03 −1.26 0.57 4 2 55.71
Nafarelin 0.2 mg/actuation Solution Topical (nasal) 1 0.0008 3 1322.50 −3.12 −5.45 −1.22 17 17 510.46
Nalbuphine hydrochloride 20 mg/mL Solution Injection (i.v.) 35.5 4 357.45 −1.00 −2.41 1.39 5 3 78.27
Nalmefene hydrochloride 1 mg/mL Solution Injection (i.v.) 124 9.6 339.44 −0.44 −1.13 −2.87 2.64 4 2 55.71
Naloxone 2 mg Tablets Oral 0 327.38 2.09 1.28 −2.14 0.16 5 2 73.98
Naltrexone 100 mg Tablets Oral 100 0.004 1 341.41 −0.53 1.92 0.90 −2.10 0.36 5 2 73.98
Nefopam 30 mg Tablets Oral 34 0.004 3 253.35 −0.87 3.00 −2.39 2.91 2 0 9.97
Niacin; nicotinic acid 1000 mg Capsules Oral 16.66 0.2 123.11 −0.87 0.36 −2.87 −0.05 0.80 3 1 51.07
Niacinamide; nicotinamide 750 mg Tablets Oral 1000 0.003 122.13 0.91 −1.01 0.80 2 1 56.49
Nicardipine 30 mg Capsules Oral 7.9 0.02 0 479.54 −1.78 3.82 −4.96 5.23 6 1 114.03
Nicorandil 20 mg Tablets Oral 4.2 0.02 0.5 211.18 −1.70 0.72 −1.98 0.75 5 1 99.54
Nicotine 4 mg Tablets (as chewing gum) Oral 16.7 162.24 1.17 0.43 −0.25 0.88 2 0 11.42
Nitroglycerin 0.4 mg Tablets Sublingual 0.8 0.002 0.5 227.09 −2.45 1.62 1.62 −2.68 1.76 9 0 169.35
Norethindrone 0.35 mg Tablets Oral 0.01 0.1 2 298.43 −4.47 2.97 2.97 −3.97 2.78 2 1 40.83
Norgestimate 0.25 mg Tablets Oral 0.02 0.05 0 369.51 −4.27 3.60 −5.17 5.06 3 1 62.44
Norgestrel 0.5 mg Tablets Oral 0.002 1.0 0 312.46 −5.19 3.60 −4.38 3.31 2 1 40.83
Nortilidine Active metabolite 3 259.35 −2.48 3.16 2 1 41.64
Nortriptyline 75 mg Capsules Oral 2 263.39 4.04 1.69 −1.22 4.32 1 1 14.57
Octreotide acetate 1 mg/mL Solution Injection (i.v.) 32 1019.26 −4.53 2.51 12 13 367.50
Olmesartan medoxomil 40 mg Tablets Oral 2 0.08 0 558.60 −2.45 −3.53 2.91 8 2 150.96
Omeprazole 40 mg Tablets Oral 0.5 0.3 0 345.42 −2.84 2.23 2.23 −3.69 2.57 5 1 71.04
Ondansetron 8 mg Tablets Oral 5.7 0.006 5 293.37 −1.71 2.12 −3.18 2.72 2 0 29.66
Orphenadrine 100 mg Tablets Oral 10 0.04 8 269.39 −1.43 3.77 2.78 −2.18 3.90 2 0 9.97
Oseltamivir phosphate 75 mg Capsules Oral 2 312.41 −2.36 2.13 4 2 96.67
Oxaliplatin 5 mg/mL Solution Injection (i.v.) 6 395.29 −1.82 3.13 0.78 2 2 48.49
Oxprenolol 80 mg Tablets Oral 30.86 0.01 3 265.36 −0.93 2.10 0.18 −0.80 2.09 4 2 55.34
Oxybutynin hydrochloride 15 mg Tablets Oral 0.8 0.08 0.5 357.50 −2.69 −4.23 4.87 3 1 50.80
Oxycodone 80 mg Tablets Oral 100 0.003 19 315.37 −0.50 0.21 1.65 −1.64 −0.04 5 1 60.22
Oxymorphone 40 mg Tablets Oral 24 0.007 1.9 301.35 −1.10 0.90 0.98 −1.39 −0.48 5 2 73.98
p-Aminosalicylic acid (PAS) 1200 mg Tablets Oral 142.85 0.03 2 153.14 −0.03 0.89 −0.32 1.06 4 3 91.37
Pantoprazole sodium 40 mg Tablets Oral 0 383.38 −3.45 2.11 6 1 80.15
Paroxetine 40 mg Tablets Oral 5.4 0.03 2 329.37 −1.79 1.19 −1.97 4.24 4 1 41.89
Pefloxacin 400 mg Tablets Oral 11.4 0.1 12 333.37 −1.47 0.27 0.15 −0.61 −0.32 6 1 61.72
Pentamidine 300 mg Powder Injection (i.v.) 100 0.01 12 340.43 −0.53 −1.01 2.44 2.31 6 4 120.17
Pentoxifylline 400 mg Tablets Oral 191 0.008 0 278.31 −0.16 0.29 0.29 −2.98 0.12 4 0 66.77
Perindopril erbumine 8 mg Tablets Oral 8 368.48 −0.06 −0.95 1.21 5 2 101.91
Phenobarbital 60 mg Tablets Oral 1 0.2 24 232.24 −2.37 1.47 1.34 −2.62 1.37 3 2 83.96
Phenylbutazone 100 mg Tablets Oral 0.7 0.6 1 308.38 −2.64 3.16 0.73 −3.67 3.39 2 0 41.56
Phenylephrine hydrochloride 1 mg/mL Solution (with promethazine HCl) Injection (i.v.) 167.21 −0.31 −1.89 0.51 −0.09 2 0 60.00
Pimozide 2 mg Tablets Oral 0.008 1.0 461.56 −4.76 6.30 4.09 −5.02 6.40 2 1 33.99
Pramlintide acetate 0.6 mg/mL Solution Injection (s.c.) 3950.46 −17.83 60 56 1855.80
Prazosin 5 mg Tablets Oral 1.4 0.01 0.5 383.41 −2.44 0.79 −3.62 2.03 7 1 96.10
Prednisolone 5 mg Tablets Oral 0.38 0.05 16 360.45 −2.98 1.62 1.62 −3.68 1.42 5 3 104.22
Primaquine 15 mg Tablets Oral 1 259.35 −0.07 0.32 2.60 4 2 61.59
Prochlorperazine 10 mg Tablets Oral 0.1 0.4 0.1 373.95 −3.57 4.88 2.98 −4.05 4.38 3 0 2.92
Proguanil 100 mg Tablets Oral 9.09 0.04 253.74 −1.45 2.53 0.28 2.53 5 5 89.44
Promazine 100 mg Tablets Oral 333.33 0.001 2 284.43 0.07 4.55 2.52 −2.04 4.40 2 0 1.75
Promethazine 50 mg Tablets Oral 2 284.43 4.81 2.64 −2.21 4.40 2 0 1.75
Propantheline bromide 15 mg Tablets Oral 50 0.001 3.5 368.50 −0.87 −1.07 −1.07 −4.17 1.49 1 0 36.48
Propranolol hydrochloride 80 mg Tablets Oral 50 0.006 0.25 259.35 −0.71 3.48 1.20 −1.11 2.75 3 2 46.24
Propylthiouracil 50 mg Tablets Oral 1.2 0.2 170.23 −2.15 1.09 −1.83 0.97 1 2 46.21
Protriptyline 10 mg Tablets Oral 50 0.0008 1 263.39 −0.72 1.36 −1.10 4.87 1 1 14.57
Pyrazinamide 500 mg Tablets Oral 15 0.1 1.6 123.12 −0.91 −0.60 −0.59 −0.57 −0.68 3 1 66.73
Quetiapine fumarate 300 mg Tablets Oral 94 0.01 0.5 383.52 −0.97 −3.69 2.99 5 1 43.01
Quinacrine; mepacrine 100 mg Tablets Oral 28.57 0.01 399.97 −1.15 1.91 −2.09 6.72 4 1 34.79
Quinidine sulfate dihydrate 300 mg Tablets Oral 11.1 0.1 18 324.43 −1.85 3.44 1.82 −2.67 2.79 4 1 43.08
Quinine bisulfate heptahydrate 260 mg Capsules Oral 111.1 0.009 12 324.43 −0.69 3.44 1.82 −2.85 2.79 4 1 43.08
Rabeprazole sodium 20 mg Capsules Oral 0 359.45 −3.73 2.08 5 1 70.73
Ramelteon 8 mg Tablets Oral 0.1 259.35 −3.49 2.49 2 1 41.95
Ramipril 10 mg Capsules Oral 1.5 416.52 1.76 −1.27 1.54 5 2 101.91
Reboxetine 6 mg Tablets Oral 8 0.003 10 313.40 −1.59 −2.11 3.26 4 1 41.58
Remifentanil hydrochloride 1 mg/mL Solution Injection (i.v.) 0.1 376.46 1.85 1.25 −3.15 1.96 4 0 74.45
Reserpine 0.25 mg Tablets Oral 0.01 0.1 1 608.69 −4.78 3.72 4.14 −5.80 3.86 8 1 114.49
Ribavirin 200 mg Tablets Oral 142 0.006 17 244.21 −0.24 −1.85 −2.43 −0.90 −2.85 7 4 146.67
Ridogrel 5 mg Tablets Oral 0.02 1.0 366.34 −4.26 −3.58 4.54 5 1 72.68
Riluzole 50 mg Tablets Oral 2 234.20 −2.72 3.24 3 1 47.02
Rimantadine hydrochloride 100 mg Tablets Oral 50 0.008 20 179.31 −0.55 0.08 1.85 3.96 1 1 27.97
Risperidone 4 mg Tablets Oral 0.25 0.06 3 410.50 −3.22 3.04 2.52 −3.49 2.71 4 0 53.60
Rivastigmine 6 mg Capsules Oral 0.1 250.34 −1.56 2.10 2 0 29.73
Rizatriptan 10 mg Tablets Oral 42 0.0010 14 269.35 −0.81 −1.19 0.99 3 1 39.11
Ropinirole 5 mg Tablets Oral 133 0.0002 5 260.38 −0.29 2.70 −0.33 2.80 2 1 33.72
Ropivacaine 10 mg/mL Solution Injection (epidural) 53.8 1 274.41 −0.71 2.90 1.15 −3.25 3.16 2 1 33.72
Rosiglitazone maleate 8 mg Tablets Oral 0.04 0.8 0 357.43 −3.95 −3.80 3.02 5 1 71.34
Rotigotine 18 mg Transdermal Topical (skin. membranes) 5.6 0.01 0 315.48 −1.75 4.03 3.40 −2.44 4.54 2 1 24.05
Roxatidine acetate HCl 150 mg Tablets Oral 2 384.90 −0.55 −2.62 2.80 4 1 70.19
Salicylic acid 300 mg Tablets Oral 2.51 0.5 15 138.12 −1.74 2.26 −1.51 0.20 2.19 3 2 63.70
Scopolamine 10 mg Tablets Oral 666.67 0.00006 6 303.36 0.34 0.98 0.62 −1.72 0.29 4 1 59.59
Secobarbital (quinalbarbitone) 100 mg Tablets Oral 1.1 0.4 238.29 −2.34 1.97 1.97 −2.94 2.16 3 2 83.96
Selegiline; (−)-deprenil 5 mg Tablets Oral 0.1 187.29 2.90 2.67 −2.32 3.02 1 0 1.18
Sertraline hydrochloride 100 mg Tablets Oral 3.8 0.1 0.2 306.24 −1.91 2.74 −2.99 5.35 1 1 14.57
Sibutramine 15 mg Capsules Oral 2.9 0.02 0 279.86 −1.98 1.49 −2.19 5.59 1 0 1.18
Sildenafil 100 mg Tablets Oral 3.5 0.1 7.5 474.59 −2.13 −4.17 1.98 7 1 105.18
Solifenacin succinate 10 mg Tablets Oral 12.5 362.48 −3.16 4.68 2 0 29.42
Sparfloxacin 200 mg Tablets Oral 1.1 0.7 10 392.41 −2.55 −0.67 −0.61 7 3 102.79
Sufentanil 0.05 mg/mL Solution Injection (i.v.) 6 386.56 3.95 3.24 −3.23 3.59 3 0 29.11
Sumatriptan succinate 100 mg Tablets Oral 21.4 0.02 22 295.41 −1.14 0.93 −1.17 −0.96 0.74 3 2 67.24
Sunitinib malate 50 mg Capsules Oral 25 0.008 4 398.48 −1.20 5.40 −2.58 3.00 3 3 80.53
Tacrine 40 mg Capsules Oral 0.5 198.27 2.71 0.46 −0.12 3.27 2 1 37.91
Tamoxifen 20 mg Tablets Oral 0.5 0.2 0.5 371.53 −2.87 6.56 −4.42 6.82 2 0 10.28
Tamsulosin 0.4 mg Capsules Oral 8.7 408.52 −2.96 2.17 6 2 107.38
Temazepam 30 mg Capsules Oral 0.604 0.2 0.5 300.75 −2.70 2.19 1.79 −3.58 2.34 3 1 51.32
Temocapril 4 mg Tablets Oral 1.5 476.62 −1.98 2.10 5 2 101.91
Temsirolimus 10 mg/mL Solution Injection (i.v.) 0.01 4.6 1030.31 −5.01 −9.52 0.67 14 4 253.80
Tenoxicam 20 mg Tablets Oral 0.803 0.10 0.1 337.38 −2.62 −0.32 −0.17 1.61 5 2 104.05
Terazosin 10 mg Tablets Oral 24.2 0.002 10 387.44 −1.20 −4.64 −3.71 2.18 8 1 95.48
Theophylline 600 mg Tablets Oral 8.3 0.3 18 180.17 −1.34 −0.04 −0.02 −1.87 −0.03 3 1 61.90
Thioguanine 40 mg Tablets Oral 0.2 0.8 0.5 167.19 −2.92 −0.79 −1.70 3 3 76.09
Thiopental 1000 mg Powder Injection (i.v.) 50 0.08 0.5 242.34 −0.69 2.85 2.84 −3.26 2.98 2 2 65.69
Thioridazine 200 mg Tablets Oral 1 0.8 370.58 −2.57 5.90 3.55 −3.53 6.00 2 0 1.75
Ticlopidine 250 mg Tablets Oral 0.5 263.79 3.37 −3.48 4.39 1 0 1.18
Tilidine; tilidate 50 mg Capsules Oral 0.1 273.38 −2.77 3.76 2 0 28.24
Timolol 20 mg Tablets Oral 2.74 0.03 15 316.43 −2.06 1.83 1.91 −0.74 1.21 7 2 75.98
Tinidazole 500 mg Tablets Oral 20 0.1 22.5 247.27 −1.09 −0.35 −0.33 −1.71 −0.32 5 0 91.72
Tolterodine 2 mg Tablets Oral 12 0.0007 1 325.50 −1.43 −2.28 5.24 2 1 24.05
Toremifene 60 mg Tablets Oral 0.38 0.6 0.1 405.97 −3.03 −4.75 6.53 2 0 10.28
Tramadol 50 mg Tablets Oral 20 263.38 2.63 −0.59 3.10 3 1 32.84
Tranylcypromine sulfate 10 mg Tablets Oral 48 0.0008 133.19 −0.44 0.69 −0.33 1.48 1 1 27.97
Triamcinolone 4 mg Tablets Oral 0.08 0.2 1 394.44 −3.69 1.16 1.16 −3.07 0.71 6 4 126.78
Triamcinolone acetonide 4 mg Tablets Oral 0.114 0.1 1 434.51 −3.58 2.53 2.30 −4.17 2.21 6 2 99.25
Triazolam 0.5 mg Tablets Oral 0.045 0.04 2 343.22 −3.88 2.42 1.63 −4.21 2.62 3 0 33.27
Trifluoperazine 10 mg Tablets Oral 50 0.0008 407.50 −0.91 5.03 3.14 −3.80 4.69 3 0 2.92
Trihexyphenidyl (benzhexol) 5 mg Tablets Oral 10 0.002 301.48 −1.48 4.82 −1.94 5.15 2 1 23.73
Trimetrexate glucuronate 200 mg Powder Injection (i.v.) 50 0.02 20 369.43 −0.87 1.63 −3.54 1.84 8 3 117.41
Tropisetron 5 mg Capsules Oral 11 0.002 8 284.36 −1.41 0.65 −1.94 2.88 2 1 42.21
Urapidil 5 mg/mL Solution Injection (i.v.) 19 15 387.49 −1.31 1.60 2.02 −3.74 2.44 6 1 63.11
Valacyclovir 1000 mg Caplets Oral 174 0.02 0.5 324.34 −0.27 −1.59 −1.22 7 3 144.80
Valganciclovir; valcyte 450 mg Tablets Oral 70 0.03 354.37 −0.70 −2.05 −1.54 −2.18 9 4 167.36
Valproic acid 250 mg Tablets Oral 1.3 0.8 1.8 144.22 −2.05 2.75 0.13 −1.45 2.76 2 1 40.83
Vardenafil 20 mg Tablets Oral 0.11 0.7 4 488.61 −3.65 −4.03 2.23 7 1 104.88
Vasopressin 60.8 μg/mL Solution (20 units per mL) Injection (s.c.) 0.1 5 1084.25 −4.04 −2.25 −3.82 16 15 504.48
Venlafaxine hydrochloride 150 mg Tablets Oral 572 0.001 4.6 277.41 0.31 −1.52 3.27 3 1 32.84
Verapamil hydrochloride 120 mg Tablets Oral 0.75 0.64 1.5 454.61 −3.05 3.79 −4.11 4.47 6 0 56.29
Vinblastine 1 mg/mL Solution Injection (i.v.) 10 0.5 811.00 −1.91 3.70 3.69 −6.97 5.23 9 3 152.61
Vincristine 1 mg/mL Solution Injection (i.v.) 10 15 824.98 −1.92 2.57 −6.35 4.04 9 3 170.88
Vinorelbine tartrate 10 mg/mL Solution Injection (i.v.) 1000 11 778.95 0.11 −6.71 5.94 8 2 130.05
Vitamin B6 (pyridoxine) 25 mg Capsules Oral 222 0.0005 169.18 0.12 −0.77 −0.75 −0.35 4 3 78.23
Vitamin D3 (cholecalciferol) 1.4 mg Tablets Oral 0.1 0.06 384.65 −3.59 −6.71 9.48 1 1 22.56
Vorozole 2.5 mg Tablets Oral 8 324.78 −4.16 2.20 4 0 50.83
Zidovudine 300 mg Capsules Oral 25 0.05 2.8 267.25 −1.03 0.05 0.08 −2.31 0.04 6 2 127.30
Zolmitriptan 5 mg Tablets Oral 20 0.001 8 287.36 −1.16 −1.03 1.29 2 2 56.78
Zolpidem tartrate 10 mg Tablets Oral 23 0.002 0.5 307.40 −1.13 2.35 −4.20 3.03 3 0 29.96
Zonisamide 100 mg Capsules Oral 0.8 0.5 22 212.23 −2.42 −0.10 −1.30 −0.36 3 1 88.84
Zopiclone 7.5 mg Tablets Oral 0.12 0.3 4.5 388.82 −3.51 1.50 −0.90 −2.84 1.25 6 0 79.29

Table II.

Measured and In Silico Data for 265 BDDCS Class 2 Drugs

Generic name Maximum strength dose value Maximum strength dose unit Formulation Route Measured solubility (mg/mL) Dose number % Excreted unchanged in urine MW drug Measured LogS molar Measured LogP Measured LogD74 minVSLgS 3–7.5 CLogP HBA HBD PSA
10-Hydroxy-carbamazepine Active metabolite 0.045 27 254.29 −3.75 1.26 −3.15 1.21 2 2 32.78
6-Methoxy-2-naphthyl-acetic acid Active metabolite 1 216.24 −0.30 −2.29 2.51 3 1 49.94
Acitretin 25 mg Capsules Oral 0 326.44 6.40 −5.07 6.07 3 1 49.94
Adapalene 6 mg Cream, gel, solution Topical (skin. membranes) 412.53 7.88 −5.78 9.15 3 1 49.94
Albendazole 200 mg Tablets Oral 0 265.34 2.85 −3.54 3.46 3 2 65.55
Albendazole sulfoxide Active metabolite 1 281.34 −3.28 3.46 3 2 65.55
Allopurinol 300 mg Tablets Oral 0.569 2.1 12 136.11 −2.38 −0.55 −0.55 −1.18 0.63 3 2 70.47
Altretamine 50 mg Capsules Oral 0.5 210.28 2.73 −3.02 1.67 6 0 33.35
Aminoglutethimide 250 mg Tablets Oral 232.28 1.41 −2.35 0.77 3 2 78.79
Amiodarone hydrochloride 400 mg Tablets Oral 0.7 2.3 0 645.32 −2.96 7.80 2.54 −5.40 8.95 3 0 37.97
Amphotericin B 2 mg/mL Solution Injection (i.v.) 0.1 3.5 924.10 −3.97 −6.40 −3.65 17 12 347.83
Amprenavir 50 mg Capsules Oral 0.04 5.0 1 505.64 −4.10 −5.03 3.29 6 3 139.36
Anidulafungin 3.33 mg/mL Solution Injection (i.v.) 0.05 0.5 1140.27 −4.36 −10.68 2.20 17 14 415.56
Aprepitant 125 mg Capsules Oral 0 534.44 −5.28 4.60 5 2 78.12
Argatroban 1 mg/mL Solution Injection (i.v.) 16 508.64 −1.80 −0.57 9 6 192.20
Aripiprazole 30 mg Tablets Oral 0.0001 1200 0.5 448.40 −6.65 3.20 −4.64 5.31 4 1 43.70
Armodafinil 250 mg Tablets Oral 8 273.36 −2.82 0.94 2 1 64.62
Artemether 50 mg Tablets Oral 298.38 −3.35 3.05 5 0 49.50
Astemizole 10 mg Tablets Oral 0.5 458.58 5.70 3.88 −5.40 6.09 4 1 35.37
Atazanavir sulfate 300 mg Capsules Oral 7 704.87 −7.38 5.92 7 5 186.22
Atorvastatin calcium 80 mg Tablets Oral 0.0000204 15686 1 558.66 −7.44 −6.47 4.46 5 4 119.06
Azelastine hydrochloride 457 μg/mL Solution Ophthalmic 2 381.91 1.96 −2.37 4.01 3 0 33.17
Bevantolol 200 mg Tablets Oral 0.1843 4.3 8 345.44 −3.27 3.00 3.00 −3.15 3.00 5 2 64.45
Bexarotene 75 mg Capsules Oral 0.01 348.49 −4.74 8.19 2 1 40.83
Bezafibrate 200 mg Capsules Oral 40 361.83 −0.17 −3.79 3.70 4 2 82.78
Bicalutamide 50 mg Tablets Oral 0.005 40 430.38 −4.93 −4.32 2.71 5 2 110.56
Bosentan 125 mg Tablets Oral 0.001 500 2 551.63 −5.74 −5.38 4.17 9 2 142.96
Buspirone 10 mg Tablets Oral 0.0214 1.9 0.1 385.51 −4.26 2.63 3.39 −3.50 2.19 6 0 60.25
Cabergoline 0.5 mg Tablets Oral 3 451.62 −4.28 4.77 4 2 118.24
Calcipotriene; calcipotriol 0.05 μg/mL Solution Topical (skin, membranes) 0.5 412.62 −5.58 5.27 3 3 67.68
Calcitriol 0.5 μg Capsules Oral 8 416.65 −6.35 6.04 3 3 67.68
Capsaicin 179 mg Cream Topical 0.06 12 0 305.42 −3.71 −4.49 4.00 3 2 64.82
Carbamazepine 300 mg Tablets Oral 0.256 4.7 0.5 236.28 −2.97 2.45 2.45 −3.32 2.38 1 1 46.81
Carbamazepine 10,11-epoxide Active metabolite 0.1 0.5 252.28 −3.40 0.69 0.69 −3.00 0.24 1 1 55.61
Carvedilol 25 mg Tablets Oral 0.01 10 1 406.49 −4.61 4.19 −4.30 4.04 5 3 78.42
Cefditoren pivoxil 200 mg Tablets Oral 0.08 10 5 620.73 −3.89 −6.88 2.71 9 2 176.19
Cefpodoxime proxetil 200 mg Tablets Oral 0.3 2.7 0 557.61 −3.27 −4.79 0.80 10 2 183.53
Celecoxib 200 mg Capsules Oral 0.005 160 2 381.38 −4.88 −4.47 4.37 3 1 78.91
Chlorzoxazone 500 mg Tablets Oral 0.25 8.0 0.5 169.57 −2.83 −1.77 2.51 2 1 42.53
Ciclesonide 0.16 mg/inhalation Solution Topical (nasal) 0.0002 3.2 0 540.70 −6.43 −6.25 5.25 6 1 103.75
Cilostazol 100 mg Tablets Oral 0.003 133 369.47 −5.09 −4.87 3.53 5 1 81.66
Cinacalcet 90 mg Tablets Oral 0.1 3.6 0.1 357.42 −3.55 −3.12 6.35 1 1 14.57
Cisapride 20 mg Tablets Oral 0.0027 30 465.96 −5.24 3.39 −4.57 3.81 6 2 88.69
Citalopram 40 mg Tablets Oral 0.031 5.2 12 324.40 −4.02 3.41 0.74 −2.83 3.13 3 0 28.67
Cladribine 1 mg/mL Solution Injection (i.v.) 18 285.69 0.02 0.24 −2.15 −0.91 7 3 112.88
Clofazimine 50 mg Capsules Oral 0.001 200 0.2 473.41 −5.68 7.48 −5.84 7.70 4 1 34.09
Clofibrate 500 mg Capsules Oral 11 242.70 3.60 3.60 −1.63 3.02 3 1 36.17
Clopidogrel bisulfate 75 mg Tablets Oral 0.05078 5.9 321.83 −3.80 −3.83 4.21 2 0 28.24
Clotrimazole 10 mg Tablets Oral 0.003 13 5 344.85 −5.06 4.80 −5.07 5.25 1 0 10.81
Clozapine 100 mg Tablets Oral 0.0118 34 0.5 326.83 −4.44 3.23 2.99 −4.37 3.71 4 1 25.63
Conivaptan hydrochloride 5 mg/ml Solution Injection (i.v.) 0.15 1 498.59 −3.55 −6.73 5.00 3 2 75.90
Cyclosporine 100 mg Capsules Oral 0.008 50 0.1 1202.64 −5.18 2.95 2.92 −10.73 14.36 12 5 290.07
Cyproterone acetate 50 mg Tablets Oral 0.0021 95 1 416.95 −5.30 −4.83 3.96 3 0 63.61
Danazol 200 mg Capsules Oral 0.0009 889 337.47 −5.57 −4.54 3.93 2 1 45.90
Dapsone 100 mg Tablets Oral 0.2 2.0 15 248.31 −3.09 0.97 0.97 −2.71 0.89 4 2 92.10
Darunavir 600 mg Capsules Oral 0.15 16 1.2 547.68 −3.56 −5.44 2.89 7 3 148.15
Dasatinib 70 mg Tablets Oral 0.1 488.02 −4.70 2.88 8 3 101.85
Daunorubicin 5 mg/mL Solution Injection (i.v.) 0.0392 0.5 527.53 −4.13 1.83 1.83 −3.89 0.84 11 5 200.34
Delavirdine 200 mg Caplets Oral 0.00081 988 2.5 456.57 −5.75 −4.80 2.41 6 3 110.60
Desloratadine 5 mg Tablets Oral 0.000077 260 5 310.83 −6.61 −2.42 3.83 2 1 24.82
Diazoxide 100 mg Capsules Oral 0.15 2.7 35 230.67 −3.19 1.81 1.08 −2.00 1.42 3 1 61.41
Dicoumarol 100 mg Tablets Oral 0.128 3.1 0.5 336.30 −3.42 2.07 1.86 −3.06 3.66 4 2 101.12
Diflunisal 500 mg Tablets Oral 6 250.20 4.44 0.76 −2.17 4.40 3 2 63.70
Diloxanide furoate 500 mg Tablets Oral 1 328.15 1.96 −4.03 3.09 2 0 55.94
Dipyridamole 75 mg Tablets Oral 0.007 43 0.1 504.64 −4.86 3.71 −4.21 1.49 12 4 134.70
Disulfiram 250 mg Tablets Oral 0.2 5.0 0 296.54 −3.17 3.88 3.88 −4.19 3.88 0 0 2.35
Docetaxel 40 mg/mL Solution Injection (i.v.) 0.0065 5 807.90 −5.09 −7.05 4.08 10 5 240.13
Domperidone 20 mg Tablets Oral 0.006 13 0 425.92 −4.85 3.90 3.33 −4.31 4.27 3 2 66.80
Donepezil 10 mg Tablets Oral 0.0029 14 10.6 379.50 −5.12 −4.10 4.60 4 0 37.66
Dronabinol; tetrahydrocannabinol 10 mg Capsules Oral 0.5 314.47 6.97 3.78 −5.91 7.24 2 1 31.98
Dronedarone 400 mg Tablets Oral 0.5 3.2 0 556.77 −3.05 −4.24 8.57 5 1 89.77
Drospirenone 3 mg Tablets Oral 0.1 366.50 −4.11 2.84 2 0 45.34
Dutasteride 0.5 mg Capsules Oral 0.5 528.54 −6.05 4.94 2 2 65.39
Ebastine 10 mg Tablets Oral 2 469.67 2.78 −5.87 6.94 3 0 28.24
Efavirenz 600 mg Capsules Oral 0.005 480 0.5 315.68 −4.80 −3.99 4.67 2 1 41.34
Entacapone 200 mg Tablets Oral 0.0166 48 0.2 305.29 −4.26 −2.73 1.76 6 2 128.04
Eplerenone 50 mg Tablets Oral 3 414.50 0.85 −4.02 0.29 4 0 81.19
Erlotinib hydrochloride 163.9 mg Tablets Oral 0.4 1.6 0.3 393.45 −2.99 −5.20 4.34 7 1 70.25
Estazolam 2 mg Tablets Oral 0.0015 5.3 4 294.75 −5.29 −3.73 2.29 3 0 33.27
Ethchlorvynol 750 mg Capsules Oral 0.05 144.60 2.06 −2.16 1.57 1 1 22.56
Etizolam 1 mg Tablets Oral 0.3 342.85 −3.82 2.87 3 0 33.27
Etodolac 600 mg Tablets Oral 0.01 240 1 287.36 −4.46 3.81 1.14 −2.81 3.43 3 2 63.59
Etomidate 2 mg/mL Solution Injection (i.v.) 0.045 2 244.30 −3.73 3.05 3.05 −3.49 2.67 2 0 37.88
Etoricoxib; arcoxia 120 mg Tablets Oral 0.14 3.4 0.5 358.85 −3.41 −4.52 2.35 4 0 57.25
Etravirine 100 mg Tablets Oral 0 435.29 −6.76 5.22 6 2 108.94
Exemestane 25 mg Tablets Oral 1 296.41 −3.95 3.28 2 0 36.54
Ezetimibe 10 mg Tablets Oral 2 409.44 −5.56 3.96 3 2 64.57
Febuxostat 80 mg Tablets Oral 0.013 25 3 316.38 −4.39 −3.59 4.40 5 1 78.88
Felodipine 10 mg Tablets Oral 0.001 40 0.25 384.26 −5.58 3.86 −4.73 5.30 3 1 68.70
Fenofibrate 145 mg Capsules Oral 0.0008 725 0.1 360.84 −5.65 4.80 −5.47 5.23 3 0 54.44
Flufenamic acid 100 mg Tablets Oral 0.0265 15 7 281.24 −4.03 5.25 2.06 −3.41 5.53 3 2 54.80
Flunarizine 10 mg Tablets Oral 0.0165 2.4 0.2 404.51 −4.39 5.78 4.90 −5.69 6.34 2 0 2.35
Fluphenazine hydrochloride 10 mg Tablets Oral 0.031 1.3 0.1 437.53 −4.22 3.48 −4.11 4.12 4 1 25.48
Flurbiprofen 100 mg Capsules Oral 2.9 244.27 4.16 0.91 −2.76 3.75 2 1 40.83
Flutamide 125 mg Capsules Oral 0.0095 53 0.5 276.22 −4.46 3.35 4.06 −3.17 3.34 3 1 76.69
Fluticasone propionate 50 μg/inhalation Suspension Topical (nasal) 0.00051 3.9 3 500.58 −5.99 −4.82 3.80 4 1 86.17
Folic acid 5 mg Tablets Oral 0.0016 13 441.41 −5.44 −0.52 −2.59 −2.31 12 6 219.42
Fosamprenavir calcium 700 mg Capsules Oral 0.31 9.0 0 585.62 −3.28 −0.53 3.04 8 4 189.86
Fosinopril 40 mg Tablets Oral 0.022 7.3 0 563.68 −4.41 2.32 −5.95 7.45 5 1 115.00
Fulvestrant 50 mg/mL Solution Injection (i.m.) 0.001 200 0.1 606.79 −5.78 −8.28 7.35 3 2 63.81
Gefitinib 250 mg Tablets Oral 0.0017 588 2 446.91 −5.42 4.85 −4.77 5.60 7 1 62.63
Gemfibrozil 600 mg Tablets Oral 0.019 126 0.5 250.34 −4.12 1.33 −3.15 3.94 3 1 49.94
Gliclazide 80 mg Tablets Oral 0.0039 82 0.5 323.42 −4.92 1.36 −0.07 −2.98 1.09 4 2 89.39
Glimepiride 4 mg Tablets Oral 0.0012 13 0 490.63 −5.61 −5.70 3.96 5 3 137.24
Glipizide 10 mg Tablets Oral 4.5 445.54 1.91 −0.40 −4.49 2.57 6 3 138.28
Glyburide; glibenclamide 6 mg Tablets Oral 0.004 6.0 0 494.01 −5.09 1.41 −5.47 4.24 5 3 126.89
Griseofulvin 500 mg Tablets Oral 0.3 352.77 2.18 2.18 −3.19 1.91 6 0 72.65
Haloperidol 20 mg Tablets Oral 0.037 2.2 1 375.87 −4.01 4.30 3.16 −3.68 3.85 3 1 42.01
Ibuprofen 800 mg Capsules Oral 0.038 84 0.5 206.29 −3.73 3.97 0.81 −2.31 3.68 2 1 40.83
Idebenone 180 mg Capsules Oral 0.5 338.45 −4.81 3.42 5 1 76.69
Iloperidone 12 mg Tablets Oral 0.03 1.6 0.5 426.49 −4.15 −3.87 4.27 5 0 61.00
Imatinib mesylate 400 mg Capsules Oral 1 1.6 5 493.62 −2.69 −5.77 4.53 7 2 79.59
Indinavir sulfate 400 mg Capsules Oral 0.015 107 613.81 −4.61 2.92 −6.21 3.68 7 4 123.40
Indobufen 200 mg Tablets Oral 13 295.34 −0.70 −3.20 3.27 3 1 59.98
Indomethacin 50 mg Tablets Oral 0.0025 80 15 357.80 −5.16 4.27 0.77 −3.93 4.18 4 1 68.78
Indoramin 25 mg Tablets Oral 5 347.46 3.23 2.29 −3.86 2.84 2 2 47.99
Irbesartan 300 mg Tablets Oral 0.08 15 2.5 428.54 −3.73 1.00 −2.82 6.04 5 1 82.47
Isotretinoin; 13-cis-retinoic acid 40 mg Capsules Oral 0.5 300.44 6.30 4.23 −4.80 6.74 2 1 40.83
Isradipine 5 mg Capsules Oral 0.008 2.5 0 371.40 −4.67 4.28 3.67 −4.14 3.92 5 1 105.96
Itraconazole 100 mg Capsules Oral 0.000001 400000 0.03 705.65 −8.85 5.66 3.27 −8.44 5.99 9 0 84.66
Ixabepilone 1.915 mg/mL Solution Injection (i.v.) 5.6 506.71 −5.51 3.08 6 3 115.27
Ketanserin 40 mg Tablets Oral 0.05 3.2 0.5 395.44 −3.90 3.29 2.18 −5.10 3.00 4 1 70.53
Ketoconazole 200 mg Tablets Oral 0.0069 116 3 531.44 −4.89 4.35 4.05 −5.99 3.64 6 0 57.83
Ketoprofen 75 mg Capsules Oral 0.18 1.7 0.5 254.29 −3.15 3.12 −0.01 −2.82 2.76 3 1 59.10
Lamotrigine 200 mg Tablets Oral 0.17 4.7 10 256.10 −3.18 −0.19 −2.75 2.53 5 2 88.97
Lansoprazole 30 mg Capsules Oral 0.00097 124 0 369.37 −5.58 2.36 −3.74 2.60 4 1 61.94
Lapatinib ditosylate 250 mg Tablets Oral 0.001 1000 1 581.07 −5.76 −7.19 5.97 7 2 104.31
Latanoprost 0.5 mg/mL Solution Ophthalmic 0.05 432.61 −3.94 −6.14 3.60 4 3 94.74
Leflunomide 100 mg Tablets Oral 0.023 17 1 270.21 −4.07 −2.99 2.32 2 1 55.88
Lofepramine 70 mg Tablets Oral 4 418.97 6.57 −6.58 7.29 3 0 20.02
Lopinavir 200 mg Capsules (with 50 mg ritonavir) Oral 2.2 628.82 −7.32 6.10 5 4 131.37
Loratadine 10 mg Tablets Oral 0.005 8.0 5 382.89 −4.88 5.20 5.20 −5.32 5.05 2 0 38.48
Losartan potassium 100 mg Tablets Oral 0.048 8.3 12 422.92 −3.98 −2.04 4.10 5 2 86.79
Lovastatin 40 mg Tablets Oral 0.0004 400 10 404.55 −6.00 4.26 4.26 −4.95 4.08 3 1 76.69
Mebendazole 100 mg Tablets Oral 295.30 2.83 2.42 −4.00 3.08 4 2 83.82
Mefenamic acid 250 mg Tablets Oral 0.08 13 1 241.29 −3.48 5.12 −3.36 5.29 3 2 54.80
Mefloquine 250 mg Tablets Oral 9 378.32 0.72 −3.12 3.67 3 2 47.38
Meloxicam 15 mg Tablets Oral 0.012 5.0 0.2 351.41 −4.47 3.02 0.10 −2.15 2.29 5 2 104.05
Mercaptopurine; 6-mercaptopurine 50 mg Tablets Oral 22 152.18 0.01 0.39 1.74 0.82 3 2 44.70
Mesalamine; mesalazine 1200 mg Tablets Oral 1 4.8 7 153.14 −2.19 −3.20 1.97 1.06 4 3 91.37
Metaxalone 800 mg Tablets Oral 0.3 11 2 221.26 −2.87 2.42 −2.49 2.15 2 1 50.74
Methaqualone 500 mg Tablets Oral 0.3 6.7 0.2 250.30 −2.92 2.50 2.50 −3.83 3.65 2 0 28.78
Miconazole 1200 mg Cream, suppository Topical (skin, membranes) 0.89 5.4 0 416.14 −2.67 5.34 6.34 −5.83 5.81 2 0 19.61
Mizolastine 10 mg Tablets Oral 0.013 3.1 5 432.50 −4.52 −5.28 2.84 5 1 55.05
Modafinil 200 mg Tablets Oral 8 273.36 −2.92 0.94 2 1 64.62
Mometasone furoate 200 μg/activation Powder Topical (aerosol) 0.5 521.44 −5.87 4.12 4 1 89.90
Montelukast sodium 10 mg Tablets Oral 0.2 586.20 −7.75 8.47 4 2 73.63
Mycophenolate Active metabolite 0.5 320.35 0.20 −3.44 2.29 5 2 99.87
Mycophenolate mofetil 500 mg Tablets Oral 0.043 47 0 433.51 −4.00 2.37 −4.67 2.98 6 1 96.07
Nabumetone 750 mg Tablets Oral 0.015 200 0 228.29 −4.18 3.08 3.38 −3.51 2.98 2 0 27.38
Nalidixic acid 1000 mg Tablets Oral 0.054 74 232.24 −3.63 1.59 0.59 −1.88 1.02 5 1 69.92
Naproxen 500 mg Tablets Oral 0.115 17 0.5 230.27 −3.30 3.18 1.70 −2.50 2.82 3 1 49.94
Nateglinide 120 mg Tablets Oral 0.322 1.5 13 317.43 −2.99 −3.53 4.30 3 2 73.68
Nefazodone 100 mg Tablets Oral 0.1 470.02 5.00 −5.94 5.73 5 0 43.72
Nelarabine 5 mg/mL Solution Injection (i.v.) 1 6.6 297.27 −2.47 −1.56 −0.46 9 4 112.88
Nelfinavir 625 mg Tablets Oral 567.80 −6.89 5.84 5 4 112.29
Nevirapine 200 mg Tablets Oral 0.1 8.0 266.31 −3.43 1.81 −3.15 2.65 4 1 53.60
Nifedipine 20 mg Capsules Oral 0.006 13 0.01 346.34 −4.76 2.20 2.80 −3.66 3.13 5 1 112.85
Nifurtimox 250 mg Tablets Oral 1 287.30 −2.02 0.02 6 0 104.39
Nilotinib 200 mg Capsules Oral 4 529.53 −1.10 −7.56 5.84 6 2 87.75
Nilvadipine 2 mg Tablets Oral 0.0013 6.2 0 385.38 −5.47 −4.10 3.04 6 1 131.55
Nimesulide 100 mg Tablets Oral 0.014 29 2 308.31 −4.34 1.79 −3.01 3.21 4 1 105.36
Nimodipine 30 mg Capsules Oral 0.0025 48 0.5 418.45 −5.22 3.05 2.86 −4.68 4.00 6 1 121.64
Nitrazepam 10 mg Capsules Oral 0.0254 1.6 0.5 281.27 −4.04 2.25 2.16 −3.51 2.32 4 1 86.30
Nitrendipine 20 mg Capsules Oral 0.0022 36 0.5 360.37 −5.21 2.88 −4.20 3.73 5 1 112.85
Norelgestromin 6 mg Tablets Oral 327.47 2.70 −4.56 4.10 3 2 57.94
Norethindrone acetate 5 mg Tablets Oral 0.005 4.0 0 340.47 −4.83 −4.89 3.93 2 1 45.34
Olanzapine 40 mg Tablets Oral 0.01 16 7 312.44 −4.49 3.00 −3.79 3.01 4 1 25.63
Oxaprozin 600 mg Tablets Oral 1.7 1.4 0.5 293.33 −2.24 4.19 1.03 −3.58 2.95 3 1 60.49
Oxatomide 30 mg Tablets Oral 0.043 2.8 0 426.57 −4.00 5.42 3.39 −5.49 5.62 3 1 35.16
Oxazepam 30 mg Tablets Oral 0.045 2.7 0.5 286.72 −3.80 2.24 2.24 −3.55 2.31 3 2 64.71
Oxcarbazepine 600 mg Tablets Oral 0.085 28 252.28 −3.47 1.25 −3.18 1.21 2 1 65.09
Paclitaxel 6 mg/mL Solution Injection (i.v.) 5 853.93 6.83 −7.35 4.73 10 4 235.84
Paricalcitol 4 μg Capsules Oral 0 416.65 −6.29 5.69 3 3 67.68
Pentazocine 50 mg Tablets Oral 0.0449 4.5 15 285.43 −3.80 3.31 0.83 −2.06 4.67 2 1 24.05
Pergolide 1 mg Tablets Oral 314.50 3.97 −3.98 4.40 1 1 15.14
Perhexiline 100 mg Tablets Oral 0.00006 6667 277.50 −6.67 3.93 −1.41 7.15 1 1 14.57
Phenacetin 500 mg Tablets Oral 0.73 2.7 179.22 −2.39 1.58 −2.16 1.77 2 1 41.65
Phenytoin sodium 300 mg Tablets Oral 0.02 60 2 252.28 −4.14 2.47 2.47 −3.25 2.09 2 2 65.69
Pimecrolimus 10 mg/g Cream Topical (skin, membranes) 0 810.47 −8.00 5.30 10 2 163.34
Pioglitazone 45 mg Tablets Oral 0.5 356.45 −1.08 3.53 4 1 70.46
Piroxicam 20 mg Capsules Oral 0.0073 11 5 331.35 −4.66 3.06 0.20 −0.23 1.89 5 2 104.05
Pitavastatin 4 mg Tablets Oral 421.47 1.50 −1.51 3.59 5 3 96.19
Posaconazole 40 mg/mL Suspension Oral 0.00005 0.1 700.80 −7.15 −7.92 4.11 9 1 98.43
Prasugrel 10 mg Tablets Oral 1 373.45 −4.26 3.43 3 0 46.82
Prazepam 30 mg Tablets Oral 0.004 30 0 324.81 −4.91 3.73 3.73 −4.53 3.93 2 0 28.76
Praziquantel 600 mg Tablets Oral 0.4 6.0 2 312.42 −2.89 2.44 −3.89 3.36 2 0 38.89
Prednisone 50 mg Tablets Oral 0.133 1.5 3 358.44 −3.43 1.46 1.46 −3.57 1.66 5 2 99.93
Primidone 250 mg Tablets Oral 0.6 1.7 35 218.26 −2.56 0.91 −0.84 −2.59 0.88 2 2 65.69
Probenecid 500 mg Tablets Oral 1.2 285.36 3.21 −0.26 −2.36 3.37 4 1 79.53
Probucol 500 mg Tablets Oral 516.86 10.40 −8.32 10.97 2 2 45.74
Progesterone 200 mg Capsules Oral 0.007 114 0 314.47 −4.65 3.87 −4.25 3.78 2 0 36.54
Propafenone hydrochloride 300 mg Tablets Oral 0.093 13 0.5 341.45 −3.56 −2.21 3.64 4 2 64.51
Propofol 10 mg/mL Emulsion Injection (i.v.) 0.164 0.5 178.28 −3.04 3.79 4.16 −3.29 3.93 1 1 22.87
Propoxyphene napsylate 500 mg Tablets Oral 0.0196 102 367.54 −4.27 −0.95 5.32 2 1 41.64
Proscillaridin 0.5 mg Capsules Oral 530.66 2.48 2.48 −5.09 3.66 7 4 135.51
Pyrantel pamoate 180 mg Caplet Oral 0.5 1.4 7 206.31 −2.62 1.01 3.03 2 0 10.79
Quazepam 15 mg Tablets Oral 386.80 4.03 3.87 −4.62 3.20 1 0 10.48
Quinapril 40 mg Tablets Oral 0.001 160 3.1 438.53 −5.64 2.26 −1.82 1.74 5 2 101.91
Raloxifene; keoxifene 60 mg Tablets Oral 0.013 18 0.1 473.60 −4.56 −5.56 6.86 5 2 74.29
Raltegravir potassium 400 mg Tablets Oral 9 444.43 0.45 −3.79 1.16 7 3 150.45
Ranolazine 1000 mg Tablets Oral 6 427.55 −4.58 1.01 6 2 75.66
Repaglinide 2 mg Tablets Oral 1.5 452.60 −2.42 5.30 5 2 83.65
Rifabutin 150 mg Capsules Oral 0.19 3.2 10 847.03 −3.65 3.20 −5.36 4.73 13 5 216.49
Rifampin 300 mg Capsules Oral 7 822.96 1.32 −4.36 3.71 14 6 233.54
Ritonavir 100 mg Capsules Oral 3.5 720.96 −8.08 4.94 6 4 151.55
Rofecoxib 50 mg Tablets Oral 0.1 2.0 1 314.36 −3.50 −2.83 1.80 3 0 63.82
Romidepsin 5 mg/mL Solution Injection (i.v.) 540.71 −4.16 3.44 5 4 158.44
Rufinamide 400 mg Tablets Oral 0.059 27 1 238.20 −3.61 −2.26 0.51 3 1 73.11
Salmeterol xinafoate 0.05 mg Powder Topical (aerosol) 2.5 415.58 −3.01 3.06 5 4 91.35
Saquinavir methanesulfonate 500 mg Capsules Oral 0.08 25 2 670.86 −3.98 4.70 −6.91 4.73 7 5 178.75
Simvastatin 80 mg Tablets Oral 0.03 11 10 418.58 −4.14 4.68 4.68 −5.15 4.48 3 1 76.69
Sirolimus 2 mg Tablets Oral 2 914.20 −9.32 7.04 12 3 204.17
SN-38; 7-ethyl-10- hydroxycamptothecin Active metabolite 0.5 392.42 −4.37 1.97 5 2 101.58
Sorafenib tosylate 200 mg Tablets Oral 0 464.83 −5.95 5.46 3 3 99.32
Spironolactone 100 mg Tablets Oral 0.022 18 0.5 416.58 −4.28 2.26 2.26 −4.58 2.65 3 0 63.61
Sulfamethoxazole 800 mg Tablets Oral 0.392 8.2 14 253.28 −2.81 0.89 −2.12 0.56 4 2 102.81
Sulfasalazine 500 mg Tablets Oral 0.0024 833 1.5 398.40 −5.22 −0.78 −3.46 3.88 8 3 148.16
Sulfinpyrazone 200 mg Capsules Oral 0.031 26 39 404.49 −4.12 2.30 −0.08 −3.61 1.66 3 0 59.94
Sulindac 200 mg Tablets Oral 0.0028 286 1 356.42 −5.10 3.42 −0.66 −4.16 3.16 3 1 59.21
Sulindac sulfide Active metabolite 0.0028 0.5 340.42 −5.08 −4.38 3.16 3 1 40.83
Tacrolimus 5 mg Capsules Oral 0.008 2.5 0.5 804.04 −5.00 3.96 −7.74 5.78 11 3 185.90
Tadalafil 20 mg Tablets Oral 389.41 −4.46 2.58 4 1 71.07
Tegaserod maleate 6 mg Tablets Oral 0.5 301.39 −3.06 2.81 5 4 88.12
Telithromycin 400 mg Tablets Oral 0.8 2.0 13 812.03 −3.01 −3.70 3.75 11 1 163.02
Telmisartan 80 mg Tablets Oral 0.5 514.63 −4.72 7.54 4 1 62.46
Temozolomide 250 mg Capsules Oral 5.6 194.15 −1.48 −0.81 5 1 101.89
Teniposide 10 mg/mL Solution Injection (i.v.) 0.025 9 656.67 −4.42 1.24 3.09 −5.24 0.72 12 3 166.64
Terbinafine 250 mg Tablets Oral 291.44 6.00 −4.71 5.96 1 0 1.18
Terfenadine 60 mg Tablets Oral 0.006 40 0 471.69 −4.90 5.69 4.77 −5.48 6.07 3 2 46.29
Testolactone 50 mg Tablets Oral 0.027 7.4 300.40 −4.05 −3.86 2.63 2 0 45.34
Testosterone 40 mg Capsules Oral 0.0234 6.8 288.43 −4.09 3.32 −3.92 3.22 2 1 40.83
Tetrabenazine 25 mg Tablets Oral 0 317.43 −2.41 3.81 4 0 37.66
Thalidomide 200 mg Capsules Oral 0.0525 15 0.5 258.24 −3.69 0.33 −2.54 0.53 4 1 88.83
Thiabendazole 500 mg Tablets Oral 0.05 40 0.1 201.25 −3.60 2.47 −3.01 2.36 2 1 34.46
Thyroxine; levothyroxine 0.3 mg Tablets Oral 0.000585 2.1 0 776.88 −6.12 0.65 −3.17 3.51 4 3 101.09
Tiagabine hydrochloride 16 mg Tablets Oral 0.03 2.1 2 375.56 −4.10 −1.87 2.78 3 1 42.01
Tiaprofenic acid 300 mg Tablets Oral 2.5 260.31 2.51 −0.86 −2.42 2.54 3 1 59.10
Tibolone 2.5 mg Tablets Oral 0 312.46 −4.68 3.15 2 1 40.83
Tipranavir 500 mg Tablets Oral 0.1 602.68 −6.52 7.76 5 2 111.66
Tizanidine 6 mg Capsules Oral 253.71 −2.40 2.09 5 2 58.53
Tolazamide 500 mg Tablets Oral 0.278 7.2 311.41 −3.05 2.69 0.09 −3.03 1.34 4 2 89.39
Tolbutamide 200 mg Tablets Oral 0.109 7.3 0 270.35 −3.39 2.34 2.52 −2.86 2.50 3 2 84.94
Tolcapone 200 mg Tablets Oral 0.5 273.25 −3.11 3.25 5 2 108.16
Tolfenamic acid 200 mg Tablets Oral 8 261.71 5.17 −3.55 5.66 3 2 54.80
Tolmetin 600 mg Tablets Oral 0.22 11 7 257.29 −3.07 2.79 −0.98 −2.29 2.21 3 1 59.67
Tolvaptan 30 mg Tablets Oral 0.0005 240 0 448.95 −5.95 −6.28 4.65 3 2 74.25
Torsemide, torasemide 100 mg Tablets Oral 0.16 1.56 20 348.43 3.37 0.45 −1.04 3.36 5 3 109.16
Trandolapril 4 mg Tablets Oral 430.55 1.08 −1.68 2.10 5 2 101.91
Trazodone 300 mg Tablets Oral 0.2 6.0 0.5 371.87 −3.27 3.80 2.64 −4.92 3.85 4 0 34.31
Treprostinil 10 mg/mL Solution Injection (s.c.) 4 390.52 −4.33 3.72 5 3 95.05
Tretinoin 10 mg Capsules Oral 0.5 300.44 6.30 4.23 −4.71 6.74 2 1 40.83
Triamterene 100 mg Capsules Oral 0.029 14 10 253.27 −3.94 0.98 1.30 −2.54 1.61 7 3 123.98
Triclabendazole 250 mg Tablets Oral 0.0002 5000 2 359.66 −6.25 2.31 −5.39 6.44 1 1 33.63
Trimipramine maleate 100 mg Tablets Oral 294.44 1.98 −2.35 5.44 2 0 1.75
Ursodiol; ursodeoxycholic acid 500 mg Tablets Oral 0.5 392.58 4.15 2.03 −4.68 4.51 4 3 85.95
Valdecoxib; bextra 20 mg Tablets Oral 314.37 −3.93 1.83 3 1 88.84
Vitamin A (retinol) 110 mg Tablets Oral 0.044 10 0 286.46 −3.81 5.68 −5.12 6.40 1 1 22.56
Vitamin D2 (ergocalciferol) 1.25 mg Capsules Oral 396.66 7.04 −6.63 9.39 1 1 22.56
Voriconazole 200 mg Tablets Oral 0.39 2.1 1.5 349.32 −2.95 −3.20 0.52 5 1 67.01
Warfarin 10 mg Tablets Oral 0.018 2.2 1 308.34 −4.23 2.60 1.12 −3.40 2.90 3 1 68.83
Zafirlukast 20 mg Tablets Oral 0 575.69 −6.67 7.09 6 2 121.38
Zaleplon 10 mg Capsules Oral 0.5 305.34 1.23 −4.19 1.44 5 0 61.50
Zileuton 600 mg Tablets Oral 0.5 4.8 236.29 −2.67 −2.16 2.48 2 2 73.18
Ziprasidone hydrochloride 80 mg Capsules Oral 0.00043 744 0.5 412.94 −5.98 −4.92 4.21 4 1 44.63

Table III.

Measured and In Silico Data for 247 BDDCS Class 3 Drugs

Generic name Maximum strength dose value Maximum strength dose unit Formulation Route Measured solubility (mg/mL) Dose number % Excreted unchanged in urine MW drug Measured LogS molar Measured LogP Measured LogD74 minVSLgS 3–7.5 CLogP HBA HBD PSA
Acamprosaic acid 333 mg Tablets Oral 50 181.21 0.72 −2.47 4 2 92.63
Acecainide; N-acetyl procainamide Active metabolite 50 81 277.37 −0.74 −0.91 1.64 3 2 66.56
Acrivastine 8 mg Capsules Oral 0.7 0.05 67 348.45 −2.70 −2.11 1.46 4 1 52.25
Adefovir dipivoxil 10 mg Tablets Oral 0.4 0.1 45 333.24 −2.92 −1.63 −1.98 8 3 149.47
Albuterol; salbutamol 4 mg Tablets Oral 50 239.32 −1.11 0.45 0.06 4 4 82.56
Alendronate sodium 70 mg Tablets Oral 45 249.10 4.87 −5.64 8 6 178.77
Almotriptan 12.5 mg Tablets Oral 40 335.47 −1.46 1.79 3 1 53.85
Alvimopan 12 mg Capsules Oral 0.1 0.5 2 424.54 −3.63 −1.82 2.16 5 3 97.72
Amantadine 100 mg Capsules Oral 50 0.008 85 151.25 −0.48 2.44 −0.69 2.00 2.00 1 1 27.97
Amikacin 250 mg/mL Solution Injection (i.v.) 98 585.61 5.31 −6.30 17 13 360.37
Amiloride 5 mg Tablets Oral 50 0.0004 49 229.63 −0.66 0.10 −1.25 −1.03 0.11 7 5 159.65
Aminocaproic acid 1000 mg Tablets Oral 333 0.01 65 131.18 0.40 −2.95 −1.60 2.05 −2.24 3 2 68.80
Amoxicillin 875 mg Tablets Oral 3.5 1.0 86 365.41 −2.02 0.87 −1.52 −0.47 −1.87 6 4 143.96
Ampicillin 500 mg Capsules Oral 7.8 0.3 88 349.41 −1.65 1.35 −1.61 −0.42 −1.20 5 3 121.09
Atenolol 100 mg Tablets Oral 24.8 0.02 94 266.34 −1.03 0.16 −1.03 −0.16 −0.11 4 3 92.48
Atropine (DL) 0.4 mg Tablets Oral 0.002 0.8 57 289.38 −5.16 1.83 −0.96 1.30 3 1 50.80
Azacitidine 25 mg/mL Solution Injection (i.v.) 89 62 244.21 −0.44 −3.02 −0.83 −2.20 8 4 143.47
Azithromycin 600 mg Tablets Oral 39 0.06 6 749.00 −1.28 4.02 −3.15 2.64 13 5 186.17
Azlocillin 4000 mg Powder Injection (i.v.) 50 0.3 65 461.50 −0.97 −2.82 1.56 6 4 159.99
Aztreonam 40 mg/mL Solution Injection (i.v.) 10 68 435.44 −1.64 −5.07 1.07 0.34 11 4 213.20
Baclofen 20 mg Tablets Oral 2.1 0.04 69 213.67 −2.01 −0.96 −0.96 0.91 −0.62 3 2 68.80
Benazeprilat Active metabolite 18 396.45 −0.07 −0.89 2.04 6 3 115.38
Bendroflumethiazide 10 mg Tablets Oral 0.108 0.4 21 421.42 −3.59 1.89 1.99 −3.42 1.73 5 3 131.87
Betamipron 5 mg/mL Solution (with panipenem) Injection (i.v.) 98 193.20 −1.18 0.72 3 2 73.68
Biapenem 300 mg Powder Injection (i.v.) 53 350.40 −0.67 −6.35 5 1 97.13
Biotin 5 mg Tablets Oral 0.22 0.09 43 244.31 −3.05 −1.14 −0.08 3 3 88.25
Bisoprolol fumarate 10 mg Tablets Oral 63 325.45 1.87 −0.23 −1.52 1.83 5 2 63.82
Bleomycin A2 3 mg/mL Solution Injection (i.v.) 20 68 1415.58 −1.85 −7.03 −7.68 28 20 662.79
Bretylium 50 mg/mL Solution Injection (i.v.) 50 77 243.17 −0.69 −2.10 −1.93 −1.25 0 0 0.00
Bumetanide 2 mg Tablets Oral 0.1 0.08 45 364.42 −3.56 −0.45 −3.55 3.37 5 3 130.02
Cadralazine 10 mg Tablets Oral 1.3 0.03 75 283.33 −2.34 0.32 −2.80 0.93 6 3 106.01
Capreomycin 1B 500 mg/mL Solution Injection (i.v.) 90 653.70 1.99 −5.51 11 13 389.22
Captopril 100 mg Tablets Oral 160 0.003 38 217.29 −0.13 0.34 −1.98 −1.04 0.89 3 2 60.28
Carbenicillin 382 mg Tablets Oral 50 0.03 82 378.41 −0.88 1.13 −1.33 1.64 6 3 133.95
Carboplatin 10 mg/mL Solution Injection (i.v.) 14 77 371.26 −1.42 −2.30 0.94 −0.34 2 2 149.65
Carteolol 10 mg Tablets Oral 60 292.38 −0.46 −0.76 1.29 4 3 78.78
Cefaclor 500 mg Capsules Oral 8.59 0.2 52 367.81 −1.63 −1.76 −0.17 −1.64 5 3 121.09
Cefadroxil 1000 mg Tablets Oral 14.2 0.3 93 363.39 −1.41 −3.40 0.14 −2.51 6 4 143.96
Cefamandole 400 mg Tablets Oral 333 0.005 96 462.51 −0.14 0.50 −2.40 −2.54 0.11 8 3 155.70
Cefazolin 1000 mg Powder Injection (i.v.) 33 0.1 80 454.51 −1.14 −0.58 −3.14 −1.36 −1.19 9 2 156.53
Cefepime 2000 mg Powder Injection (i.v.) 85 480.57 −0.27 −3.05 8 2 152.65
Cefmetazole sodium 40 mg/mL Solution Injection (i.v.) 0.0942 80 471.54 −3.70 −0.60 −2.34 −1.34 9 2 160.63
Cefodizime 50 mg/mL Solution Injection (i.v.) 270 80 584.67 −0.34 −1.00 1.10 11 4 203.72
Cefonicid 20 mg/mL Solution Injection (i.v.) 99 542.57 −1.71 −1.92 11 4 215.48
Ceforanide 50 mg/mL Solution Injection (i.v.) 84 519.56 0.00 −3.36 10 4 201.94
Cefotaxime 40 mg/mL Solution Injection (i.v.) 30 455.47 −1.70 −0.31 0.14 9 3 179.71
Cefotetan 50 mg/mL Solution Injection (i.v.) 67 575.62 −1.20 −2.04 −1.54 11 4 229.00
Cefotiam 167 mg/mL Solution Injection (i.v.) 80 525.63 −0.79 −3.58 10 3 172.22
Cefoxitin 50 mg/mL Solution Injection (i.v.) 1000 85 427.46 0.37 −0.02 −1.89 −1.42 −0.81 6 3 156.95
Cefsulodin 500 mg Powder Injection (i.v.) 50 0.04 60 532.55 −1.03 −1.96 −6.89 8 3 199.72
Ceftazidime 20 mg/mL Solution Injection (i.v.) 5 85 546.58 −2.04 −1.60 −3.80 −0.46 −3.75 10 3 194.05
Ceftizoxime 40 mg/mL Solution Injection (i.v.) 93 383.41 0.41 0.34 8 3 152.65
Ceftriaxone 40 mg/mL Solution Injection (i.v.) 400 46 554.59 −0.14 −4.30 0.31 0.02 12 4 216.88
Cefuroxime 50 mg Tablets Oral 200 0.001 96 424.39 −0.33 −0.16 −1.91 −1.76 0.23 7 3 179.19
Celiprolol 200 mg Tablets Oral 151 0.005 20 379.50 −0.40 1.92 1.14 −1.73 1.86 5 3 98.23
Cephalexin 750 mg Capsules Oral 12 0.3 91 347.40 −1.46 −0.67 −2.40 −0.28 −1.84 5 3 121.09
Cephalothin sodium 2000 mg Powder Injection (i.v.) 50 0.2 52 396.44 −0.92 0.00 −2.20 −1.72 −0.28 5 3 120.19
Cephapirin 1000 mg Powder Injection (i.v.) 48 423.47 −1.15 −1.15 −0.27 −0.61 6 2 130.43
Cephradine 500 mg Capsules Oral 26 0.08 86 349.41 −1.13 −1.75 −2.10 −0.07 −1.73 5 3 121.09
Cetirizine 10 mg Tablets Oral 0.101 0.4 50 388.90 −3.59 1.70 −0.31 −1.42 2.08 5 1 51.97
Chloroquine 500 mg Tablets Oral 100 0.02 61 319.88 −0.50 4.63 1.54 −1.17 5.06 3 1 25.69
Cidofovir 75 mg/mL Solution Injection (i.v.) 170 90 279.19 −0.22 2.99 −2.39 8 4 152.23
Cilastatin 250 mg/mL Solution (with imipenem) Injection (i.v.) 25 70 358.46 −1.16 −1.10 0.77 0.47 6 4 142.48
Cilazaprilat 2.6 mg Tablets Oral 91 389.46 1.01 1.50 7 3 120.13
Cimetidine 800 mg Tablets Oral 6.2 0.5 62 252.34 −1.61 0.40 0.33 −1.91 0.19 5 3 81.67
Clarithromycin 500 mg Tablets Oral 2 1.0 35 747.97 −2.57 3.16 −4.00 2.37 13 4 189.50
Clavulanic acid 125 mg Tablets (with 875 mg amoxicillin) Oral 43 199.16 0.31 −1.07 5 2 91.63
Clofarabine 1 mg/mL Solution Injection (i.v.) 1 55 303.68 −2.48 −1.97 −0.46 7 3 112.88
Clonidine 0.3 mg Tablets Oral 62 230.10 1.43 0.83 −1.46 1.73 3 2 38.46
Cromolyn 5.2 mg/inhalation Solution Topical (nasal) 210 0.0001 50 468.38 −0.35 1.92 −4.80 −2.33 1.48 11 3 177.81
Cycloserine 250 mg Capsules Oral 100 0.01 65 102.09 −0.01 1.25 −1.19 3 2 72.82
Dabigatran Active metabolite 85 471.52 −2.28 0.06 8 4 146.28
Dacarbazine 10 mg/mL Solution Injection (i.v.) 4.2 39 182.19 −1.64 −0.24 −0.24 −1.56 0.48 5 2 97.62
Dactinomycin; actinomycin D 0.5 mg/mL Solution Injection (i.v.) 0.5 10 1255.45 −3.40 −6.89 8.01 18 5 368.53
Dalfampridine 10 mg Tablets Oral 90.3 94.12 0.26 1.51 0.32 2 1 37.91
Daptomycin 50 mg/mL Solution Injection (i.v.) 1000 40.5 1620.71 −0.21 −7.54 −2.43 27 22 774.05
Demeclocycline 300 mg Tablets Oral 1.5 0.8 47 464.86 −2.49 −0.60 0.39 −0.59 9 6 197.07
Desmopressin 0.2 mg Tablets Oral 47 1069.24 −2.48 −3.14 15 14 476.51
Desvenlafaxine 100 mg Tablets Oral 572 0.0007 45 263.38 0.34 0.21 −1.28 2.68 3 2 34.13
Dexrazoxane 500 mg Powder Injection (i.v.) 11 0.2 42 268.27 −1.39 −1.60 −2.12 −1.33 6 2 104.58
Dibekacin; dideoxykanamycin B 50 mg/mL Ampoules Injection (i.m.) 81 451.52 1.70 −3.41 13 9 265.26
Dicloxacillin 500 mg Capsules Oral 60 470.33 2.91 −3.36 2.98 5 2 116.46
Didanosine 25 mg Tablets Oral 27.3 0.004 55 236.23 −0.94 −1.24 −1.24 −1.62 −1.65 6 2 84.65
Digitoxin 0.1 mg Tablets Oral 0.01 0.04 30 764.96 −4.88 2.83 2.83 −6.01 2.85 12 5 192.62
Digoxin 0.25 mg Tablets Oral 0.986 0.001 60 780.96 −2.90 1.26 1.26 −6.30 1.42 13 6 215.17
Disopyramide 150 mg Capsules Oral 1 0.6 55 339.48 −2.53 2.58 −0.43 −0.79 2.58 3 1 57.66
Dofetilide 0.5 mg Capsules Oral 64 441.57 −3.35 1.99 6 2 113.88
Dorzolamide hydrochloride 0.02 mg/mL Solution Ophthalmic 3.9 10 324.44 −1.92 1.31 −0.43 5 2 116.83
Doxycycline 40 mg Tablets Oral 41 444.45 −0.02 −0.06 0.52 −0.51 9 6 197.07
Edetate calcium disodium 200 mg/mL Solution Injection (i.v.) 91 95 292.25 −0.51 6.61 −1.93 10 4 165.67
Emtricitabine 200 mg Capsules Oral 112 0.007 73 247.25 −0.34 −0.43 −0.43 −1.31 −1.29 5 2 88.11
Enalaprilat 8 mg Tablets Oral 60 348.40 −0.74 −0.28 0.21 0.88 6 3 115.68
Entecavir 1 mg Tablets Oral 2.4 0.002 70 277.29 −2.06 −2.13 −2.58 6 4 126.09
Eptifibatide 2 mg/mL Solution Injection (i.v.) 65 50 831.98 −1.11 −5.02 −2.86 12 11 350.27
Ertapenem sodium 1000 mg Powder Injection (i.v.) 38 475.52 −0.26 −1.82 8 5 170.78
Erythromycin (base) 500 mg Tablets Oral 2.1 1.0 5 733.95 −2.54 3.06 −3.84 1.61 13 5 203.27
Erythromycin lactobionate 50 mg/mL Solution Injection (i.v.) 20 5 1074.21 −1.73 −3.84 1.61 13 5 203.27
Ethambutol 400 mg Tablets Oral 79 204.31 −2.79 1.55 0.12 4 4 74.26
Etidronic acid 400 mg Tablets Oral 50 206.03 −8.86 4.72 −2.54 7 5 150.80
Etoposide 50 mg Capsules Oral 0.22 0.9 38 588.57 −3.43 0.60 0.60 −4.31 0.03 12 3 166.64
EXP-3174 Active metabolite 55 436.90 −1.50 5.59 6 2 105.06
Famotidine 40 mg Tablets Oral 67 337.45 −0.64 −1.50 −1.64 −1.17 8 6 179.34
Ferrous sulfate 182 mg Capsules Oral 570 0.001 151.91 0.57 3.65 −4.15 4 0 75.52
Fexofenadine; terfenadine carboxylate 180 mg Tablets Oral 25 501.67 2.68 −3.08 1.96 5 3 87.12
Flecainide 150 mg Tablets Oral 48.4 0.01 43 414.35 −0.93 3.78 1.14 −2.20 3.66 4 2 65.63
Fluconazole 200 mg Capsules Oral 1 0.8 75 306.28 −2.49 0.50 0.95 −2.35 −0.44 5 1 70.48
Flucytosine 500 mg Capsules Oral 15 0.1 99 129.09 −0.93 −1.97 0.05 −1.64 3 2 70.15
Foscarnet 24 mg/mL Solution Injection (i.v.) 82 126.01 −2.00 3.43 −2.17 5 3 104.95
Fosfomycin tromethamine 3000 mg Tablets Oral 50 0.2 82 138.06 −0.44 4.57 −0.23 4 2 72.91
Gabapentin 800 mg Tablets Oral 10 0.3 100 171.24 −1.23 −1.10 −1.31 1.75 −0.66 3 2 68.80
Gallium nitrate 25 mg/mL Solution Injection (i.v.) 80 255.73 1.71 1.43 9 0 199.71
Ganciclovir sodium 500 mg Capsules Oral 6 0.3 91 255.24 −1.66 −1.66 −4.25 −1.52 −2.73 8 4 134.88
Gentamicin C1 sulfate 40 mg/mL Solution Injection (i.v.) 50 91 477.61 −0.98 −8.40 3.49 −1.80 12 8 215.91
Gold sodium thiomalate 50 mg/mL Solution Injection (i.m.) 70 368.09 1.90 −3.30 4 1 81.66
Guanfacine hydrochloride 2 mg Tablets Oral 1 0.008 50 246.10 −2.39 1.33 1.12 −2.16 1.37 3 3 83.82
Hydrochlorothiazide 50 mg Tablets Oral 0.6 0.3 100 297.74 −2.70 −0.07 −0.07 −1.75 −0.37 5 3 131.87
Hydrodolasetron Active metabolite 53 326.40 −1.44 1.90 3 2 64.77
Hydroflumethiazide 50 mg Tablets Oral 0.3 0.7 90 331.29 −3.04 0.36 0.36 −1.88 −0.21 5 3 131.87
Hydroxyurea 1000 mg Tablets Oral 50 0.08 80 76.06 −0.18 −1.80 1.19 −1.80 2 3 86.58
Hyoscyamine; l-atropine 311 μg Tablets Oral 3.56 0.0003 57 289.38 −1.91 1.83 −0.44 −0.88 1.30 3 1 50.80
Ibandronate 150 mg Tablets Oral 55 319.23 2.10 −3.37 8 5 151.98
Imidaprilat Active metabolite 9 377.40 0.46 1.74 7 3 137.49
Imipenem 750 mg Powder Injection (i.v.) 10 0.3 69 299.35 −1.48 0.82 −1.35 6 4 120.42
Iohexol 755 mg/mL Solution (equivalent to 350 mg I per mL) Injection (i.v.) 95 821.15 −4.12 0.66 9 8 220.19
Iopamidol 755 mg/mL Solution (equivalent to 370 mg I per mL) Injection (i.v.) 96 777.09 −3.88 0.86 8 8 211.03
Iopromide 769 mg/mL Solution (equivalent to 370 mg I per mL) Injection (i.v.) 97 791.12 −3.90 1.37 8 6 183.86
Ipratropium bromide 17 μg/activation Solution Topical (aerosol) 50 332.47 −2.28 −2.19 2 1 49.62
Kanamycin 333 mg/mL Solution Injection (i.v.) 90 484.51 3.84 −5.17 15 11 304.97
Ketorolac 10 mg Tablets Oral 200 0.0002 58 255.28 −0.11 1.04 −2.37 1.62 3 1 59.67
Lacosamide; erlosamide 50 mg Tablets Oral 2 0.1 40 250.30 −2.10 −2.15 0.39 3 2 74.48
Lamivudine 300 mg Tablets Oral 70 0.02 67 229.26 −0.52 −0.93 −1.21 −1.46 5 2 88.11
Latamoxef; moxalactam 100 mg/mL Solution Injection (i.v.) 50 76 520.48 −1.02 −0.58 −3.45 −1.98 −0.82 12 4 214.42
Leucovorin; folinic acid 25 mg Tablets Oral 500 0.0002 10 473.45 0.02 −7.85 −1.81 −3.49 12 7 232.35
Levalbuterol 45 μg/activation Solution Topical (aerosol) 180 0.000001 46 239.32 −0.12 −1.11 0.45 0.06 4 4 82.56
Levetiracetam 1000 mg Tablets Oral 1040 0.004 66 170.21 0.79 −1.18 −0.34 2 1 65.69
Levocetirizine 5 mg Tablets Oral 0.101 0.2 71 388.90 −3.59 1.70 −0.31 −1.54 2.08 5 1 51.97
Levofloxacin 750 mg Tablets Oral 50 0.06 74 361.38 −0.86 −0.39 −0.40 −0.45 −0.51 7 1 70.83
Lincomycin 300 mg/mL Solution Injection (i.v.) 50 30 406.55 −0.91 0.56 −2.27 1.28 7 5 133.05
Lisinopril 40 mg Tablets Oral 97 0.002 94 405.50 −0.62 −1.22 −3.40 1.85 −1.69 7 4 143.65
Lithium carbonate 600 mg Tablets Oral 13 0.2 95 73.89 −0.75 0.00 −3.65 3 0 63.19
Lomefloxacin 400 mg Tablets Oral 1.64 1.0 65 351.36 −2.33 −0.30 −1.03 −0.56 −0.11 6 2 75.12
Loperamide 2 mg Capsules Oral 1.4 0.006 0.5 477.05 −2.53 4.22 −4.57 4.66 3 1 43.18
Loracarbef 400 mg Capsules Oral 41 0.04 94 349.78 −0.93 −0.36 −0.47 5 3 121.09
Memantine 10 mg Tablets Oral 71 179.31 3.28 1.35 3.03 1 1 27.97
Metformin 1000 mg Tablets Oral 99 129.17 −5.41 4.13 −1.63 5 4 89.74
Methazolamide 50 mg Tablets Oral 0.704 0.3 61 236.27 −2.53 0.13 −1.04 0.09 6 1 107.10
Methicillin 40 mg/mL Solution Injection (i.v.) 300 88 380.42 −0.10 1.22 −2.41 −2.39 1.78 6 2 111.33
Methotrexate 15 mg Tablets Oral 0.45 0.1 81 454.45 −3.00 −1.85 −2.52 −0.03 −0.53 12 5 211.69
Methyldopa 500 mg Tablets Oral 10 0.2 40 211.22 −1.32 0.39 −2.39 1.34 −2.26 5 4 114.54
Methylnaltrexone 20 mg/mL Solution Injection (s.c.) 52.75 356.45 −1.12 −1.12 −1.70 −2.64 4 2 72.81
Metoclopramide 10 mg Tablets Oral 0.2 0.2 20 299.80 −3.18 2.62 0.32 −1.25 2.23 4 2 70.79
Metocurine iodide 2 mg/mL Solution Injection (i.v.) 3 50 652.84 −2.34 −5.31 1.12 4 0 55.25
Mezlocillin 2000 mg Powder Injection (i.v.) 45 539.59 −3.36 1.50 8 3 184.12
Miglitol 100 mg Tablets Oral 80 207.23 −3.21 1.70 −1.26 6 5 113.97
Miglustat 100 mg Capsules Oral 1000 0.0004 85 219.28 0.66 0.22 0.91 5 4 91.41
Milnacipran 100 mg Tablets Oral 55 246.36 1.46 1.91 2 1 47.42
Milrinone 1 mg/mL Solution Injection (i.v.) 1 85 211.23 −2.32 0.68 −2.50 −0.03 3 1 61.18
Mitoxantrone 2 mg/mL Solution Injection (i.v.) 7.5 7 444.49 −1.77 0.70 −0.60 2.30 10 8 185.09
Morphine 6-glucuronide Active metabolite 1000 90 461.47 0.34 −0.66 −0.23 −3.10 10 5 159.24
Moxifloxacin hydrochloride 400 mg Tablets Oral 27.5 0.06 22 401.44 −1.20 −0.83 −0.08 7 2 84.22
Nadolol 160 mg Tablets Oral 30.4 0.02 73 309.41 −1.01 0.81 0.93 −0.39 0.38 5 4 91.35
Nafcillin sodium 36 mg/mL Solution Injection (i.v.) 27 414.48 −3.46 3.53 5 2 102.23
Naratriptan 2.5 mg Tablets Oral 35 0.0003 50 335.47 −0.98 −0.72 1.70 3 2 67.24
Neomycin B sulfate 500 mg Tablets Oral 6.3 0.3 40 614.66 −2.05 4.21 −6.47 19 13 378.50
Neostigmine 15 mg Tablets Oral 100 0.0006 67 223.30 −0.35 −0.51 −2.81 1 0 28.55
Netilmicin 100 mg/mL Solution Injection (i.v.) 85 475.59 2.52 −2.40 12 8 215.91
Nizatidine 300 mg Capsules Oral 21.65 0.06 61 331.46 −1.18 −0.20 1.00 −2.55 −0.16 6 2 85.02
Nystatin 200 mg Capsules Oral 4 0.2 926.12 −2.36 −6.39 −3.20 17 12 347.83
Ofloxacin 400 mg Tablets Oral 3.54 0.5 64 361.38 −2.01 −0.39 −0.40 −0.57 −0.51 7 1 70.83
Olmesartan Active metabolite 43 446.51 −2.31 2.51 7 3 127.62
Olopatadine hydrochloride 5 mg Tablets Ophthalmic 2 0.01 65 337.42 −2.23 −1.06 1.09 4 1 51.11
Oseltamivir Active metabolite 99 284.36 0.57 −1.24 5 3 110.44
Oxacillin 167 mg/mL Solution Injection (i.v.) 46 401.44 2.38 −1.24 −2.86 2.05 5 2 116.46
Palonosetron hydrochloride 0.05 mg/mL Solution Injection (i.v.) 40 296.42 −2.72 2.18 2 0 20.62
Pamidronate disodium 15 mg/mL Solution Injection (i.v.) 46 235.07 −7.87 5.20 −6.17 8 6 178.77
Pancuronium bromide 2 mg/mL Solution Injection (i.v.) 67 572.88 −4.27 1.21 2 0 54.13
Pemetrexed disodium 25 mg/mL Solution Injection (i.v.) 90 80 427.42 −0.68 −2.23 −1.17 9 6 198.63
Penciclovir 10 mg/g Cream Topical (skin, membranes) 170 75 253.26 −0.17 −1.62 −2.17 −2.72 6 4 126.09
Penicillamine 250 mg Capsules Oral 45 149.21 −1.78 −3.94 2.60 −1.73 3 3 68.80
Penicillin G; benzylpenicillin 39 (60,000 mg/mL units/mL) Solution (as potassium salt) Injection (i.v.) 334.40 1.83 −1.81 −2.21 1.75 4 2 93.12
Pentostatin 2 mg/mL Solution Injection (i.v.) 30 80 268.27 −0.95 −2.09 −4.65 −1.17 −1.96 7 4 111.17
Phenylethylmalonamide 250 mg Tablets Oral 79 206.25 0.13 0.13 −1.61 0.01 2 2 92.49
Phenylpropanolamine 75 mg Tablets Oral 65 151.21 0.83 −2.27 0.99 0.58 2 2 50.53
Pindolol 10 mg Tablets Oral 7.9 0.005 54 248.33 −1.50 1.75 0.39 −1.40 1.67 3 3 60.21
Pipecuronium bromide 1 mg/mL Solution Injection (i.v.) 39 602.91 −3.57 0.63 4 0 56.48
Piperacillin 200 mg/mL Solution (with 25 mg/mL tazobactam) Injection (i.v.) 714.3 71 517.56 0.14 0.50 −3.30 −3.44 1.70 7 3 164.86
Piperazine 500 mg Tablets Oral 260 0.008 50 86.14 0.48 −1.50 3.10 −1.48 2 2 29.15
Piracetam 800 mg Tablets Oral 70 142.16 −1.54 −1.55 −0.45 −1.18 2 1 65.69
Pirenzepine 50 mg Tablets Oral 50 0.004 43 351.41 −0.85 0.10 −0.39 −3.12 −0.35 5 1 63.98
Plerixafor 20 mg/mL Solution Injection (s.c.) 10 70 502.80 −1.70 4.68 −0.25 8 6 89.79
Potassium chloride 1500 mg Tablets Oral 333.3 0.02 85 74.56 0.65 −1.07 −2.14 0 0 0.00
Pramipexole 1.5 mg Tablets Oral 0.2 0.03 90 211.33 −3.02 0.66 1.17 3 2 52.49
Pravastatin 80 mg Tablets Oral 300 0.001 20 424.54 −0.15 2.18 −0.23 −3.75 2.05 6 4 135.57
Pregabalin 300 mg Tablets Oral 33 0.04 90 159.23 −0.68 −1.35 2.11 −0.92 3 2 68.80
Procainamide 1000 mg Tablets Oral 4 1.0 67 235.33 −1.77 0.88 −1.15 −0.52 1.42 3 2 61.69
Pseudoephedrine 120 mg Tablets (discontinued; 60 mg in combinations) Oral 43 165.24 1.13 0.80 0.89 2 2 37.13
Pyridostigmine 60 mg Tablets Oral 100 0.002 85 181.22 −0.26 −0.13 −4.26 1 0 29.12
Pyrimethamine 25 mg Tablets Oral 0.121 0.8 65 248.72 −3.31 2.69 1.61 −2.91 3.00 4 2 75.82
Quinaprilat Active metabolite 96 410.47 −0.50 1.95 6 3 115.68
Raltitrexed 0.5 mg/mL Solution Injection (i.v.) 50 458.50 −0.32 0.71 8 4 157.86
Ramiprilat Active metabolite 13 388.47 −0.28 1.75 6 3 115.68
Ranitidine 300 mg Tablets Oral 555 0.002 30 314.41 0.25 0.27 0.54 −1.50 0.67 5 2 84.19
Regadenoson 0.08 mg/mL Solution Injection (i.v.) 0.05 65 390.36 −3.89 −3.00 −2.86 10 5 181.70
Risedronate 150 mg Tablets Oral 87 283.12 2.80 −2.62 8 5 161.04
Ritodrine 10 mg Tablets Oral 10 287.36 −1.42 1.65 4 4 82.87
Rocuronium bromide 10 mg/mL Solution Injection (i.v.) 17 530.80 −3.53 6.40 0 0 59.59
Rolitetracycline 250 mg Tablets Oral 1250 0.0008 55 527.58 0.37 −3.21 −0.82 0.47 10 6 184.85
Rosuvastatin calcium 40 mg Tablets Oral 5 481.55 −0.89 −3.71 1.90 8 3 144.83
Roxatidine Active metabolite 57.5 306.40 −2.62 2.35 4 1 65.68
Saxagliptin 5 mg Tablets Oral 17.6 0.001 24 315.42 −1.25 −2.48 0.11 4 2 88.67
Sitafloxacin 50 mg Tablets Oral 75 409.82 −1.33 −1.25 6 2 120.37
Sitagliptin 100 mg Tablets Oral 78 407.32 −1.70 0.69 4 1 71.38
Sotalol 240 mg Tablets Oral 137 0.007 85 272.37 −0.30 0.24 −0.79 0.11 0.23 4 3 88.93
Spectinomycin 625 mg/mL Solution Injection (i.m.) 7.5 70 332.36 −1.65 1.31 −2.88 9 5 141.47
Stavudine 40 mg Capsules Oral 83 0.002 39 224.22 −0.43 0.14 −1.60 −0.49 4 2 82.44
Streptomycin 1000 mg Powder Injection (i.m.) 20 0.2 55 581.58 −1.46 2.10 −4.26 19 14 357.04
Sulpiride 200 mg Tablets Oral 2.28 0.4 70 341.43 −2.18 0.57 −1.15 −0.99 1.11 5 2 108.62
Talinolol 100 mg Tablets Oral 1.23 0.3 52.8 363.50 −2.47 −2.27 3.15 4 4 93.35
Tazobactam sodium 25 mg/mL Solution (with 200 mg/mL piperacillin) Injection (i.v.) 50 77 300.29 −0.78 −0.42 −0.65 7 1 123.90
Temocaprilat Active metabolite 29.5 448.56 −1.22 2.56 6 3 117.18
Temocillin disodium 100 mg/mL Solution Injection (i.v.) 414.46 −1.32 1.52 7 3 142.75
Tenofovir disoproxil 300 mg Tablets Oral 13.4 0.09 82 519.45 −1.59 1.25 −3.71 0.80 10 1 176.07
Terbutaline 5 mg Tablets Oral 213 0.00009 56 225.29 −0.02 0.90 1.54 0.48 4 4 82.87
Tetracycline 25 mg/mL Syrup Oral 1.7 58 444.45 −2.42 −1.30 −1.41 −0.91 9 6 197.07
Tetracycline hydrochloride 500 mg Capsules Oral 10.9 0.2 58 480.94 −1.64 −1.30 −1.41 0.66 −0.91 9 6 197.07
Ticarcillin 30 mg/mL Solution Injection (i.v.) 1000 77 384.43 0.42 −1.17 1.28 6 3 133.95
Tigecycline 10 mg/mL Solution Injection (i.v.) 295 22 569.66 −0.29 0.83 −0.83 10 5 195.34
Tiludronic acid 200 mg Tablets Oral 60 318.61 0.07 0.26 6 4 128.24
Tiotropium bromide 18 μg Capsules Oral 74 392.52 −1.64 −1.71 3 1 58.42
Tirofiban hydrochloride 0.05 mg/mL Solution Injection (i.v.) 65 440.61 −2.34 2.00 6 3 116.61
Tobramycin 40 mg/mL Solution Injection (i.v.) 1000 93 467.52 0.33 2.92 −4.72 14 10 287.82
Tocainide 600 mg Tablets Oral 10 0.2 38 192.26 −1.28 0.76 0.83 −0.94 0.26 2 2 60.51
Topiramate 200 mg Tablets Oral 9.8 0.08 70 339.37 −1.54 −2.05 0.04 8 1 118.72
Topotecan 1 mg Capsules Oral 1 0.004 40 421.46 −2.62 −0.91 0.73 6 2 102.76
Trimetazidine 20 mg Tablets Oral 62 266.34 0.04 1.18 5 1 43.06
Trimethoprim 160 mg Tablets Oral 1.37 0.5 70 290.32 −2.33 0.91 0.83 −2.25 0.98 7 2 103.14
Triptorelin 3.75 mg Powder Injection (i.m.) 41.7 1311.48 −5.29 −1.22 17 18 510.46
Trospium chloride 20 mg Tablets Oral 500 0.0002 6 392.52 0.11 −3.50 −1.16 2 1 49.62
Tubocurarine 3 mg/mL Solution Injection (i.v.) 50 63 609.75 −1.09 −2.82 3.55 5 2 83.96
Vancomycin 250 mg Capsules Oral 50 0.02 79 1449.29 −1.46 −7.43 −1.14 24 19 584.97
Varenicline tartrate 1 mg Tablets Oral 0.2 0.02 92 211.27 −3.02 −0.28 0.90 3 1 35.06
Vecuronium bromide 2 mg/mL Solution Injection (i.v.) 20 557.84 −3.70 4.33 3 0 55.30
Vigabatrin 500 mg Tablets Oral 60 129.16 −2.16 −2.60 2.68 −2.22 3 2 68.80
Vitamin B1 (thiamine) 500 mg Tablets Oral 27 0.07 90 265.36 −0.99 −1.58 −5.97 4 2 71.29
Zalcitabine 0.75 mg Tablets Oral 76.4 0.00004 65 211.22 −0.44 −1.30 −1.64 −1.24 −1.25 5 2 88.11
Zanamivir 5 mg Powder Topical (aerosol) 18 0.001 100 332.32 −1.27 1.76 −5.56 10 8 215.70
Zoledronic acid 0.8 mg/mL Solution Injection (i.v.) 39 272.09 3.16 −3.07 8 5 161.62

Table IV.

Measured and In Silico Data for 53 BDDCS Class 4 Drugs

Generic name Maximum strength dose value Maximum strength dose unit Formulation Route Measured solubility (mg/mL) Dose number % Excreted unchanged in urine MW drug Measured LogS molar Measured LogP Measured LogD74 minVSLgS 3–7.5 CLogP HBA HBD PSA
Acetazolamide 250 mg Tablets Oral 0.64 1.6 90 222.25 −2.54 −0.26 −0.45 −0.77 −0.98 5 2 121.43
Acyclovir 800 mg Tablets Oral 2.5 1.3 75 225.21 −1.95 −1.56 −1.76 −2.68 −2.42 6 3 112.32
Amisulpride 200 mg Tablets Oral 50 369.49 1.10 −1.30 1.80 6 2 107.55
Atovaquone 250 mg Tablets Oral 3 366.85 3.82 −5.06 6.35 3 1 59.10
Auranofin 3 mg Capsules Oral 60 678.49 −1.91 3.79 5 0 117.05
Azapropazone; apazone 300 mg Capsules Oral 0.0615 20 60 300.36 −3.69 1.78 −3.35 1.79 4 0 52.35
Candesartan Active metabolite 52 440.47 −2.11 5.43 7 2 114.16
Candesartan cilexetil 32 mg Tablets Oral 0.05 2.6 0 610.68 −4.09 −4.35 7.33 8 1 136.25
Cefdinir 300 mg Capsules Oral 15 395.42 0.27 −0.48 8 4 166.41
Cefditoren Active metabolite 70 506.58 −6.73 1.46 9 2 162.89
Cefixime 400 mg Capsules Oral 0.05511 29 41 453.46 −3.92 0.91 0.25 10 4 193.48
Cefpodoxime 200 mg Tablets Oral 81 427.46 0.09 −0.41 9 3 155.91
Cefprozil 500 mg Tablets Oral 0.055 36 73 389.43 −3.85 −0.49 −1.87 6 4 143.96
Ceftibuten 400 mg Capsules Oral 0.08 20 71 410.43 −3.71 1.68 −1.21 8 4 171.87
Chlorothiazide 500 mg Tablets Oral 0.52 3.8 92 295.72 −2.75 −0.24 −1.10 −1.59 −1.00 6 2 126.91
Chlorthalidone 100 mg Tablets Oral 0.27 1.5 65 338.77 −3.10 0.85 0.85 −2.98 0.45 4 3 120.90
Cinoxacin 500 mg Tablets Oral 60 262.22 −1.55 −2.05 1.74 7 1 91.03
Ciprofloxacin 750 mg Tablets Oral 0.15 20 65 331.35 −3.34 0.28 −1.21 −0.45 −0.73 6 2 75.12
Clodronic acid 800 mg Capsules Oral 0.395 8.1 80 244.89 −2.79 4.95 −0.14 6 4 128.24
Cloxacillin 250 mg Tablets Oral 0.0139 72 75 435.89 −4.50 2.48 −1.82 −2.98 2.52 5 2 116.46
Dalfopristin 100 mg/mL Solution Injection (i.v.) 4.5 690.86 −5.35 0.92 9 2 177.78
Daunorubicinol Active metabolite 25 529.55 −1.12 1.36 11 6 204.62
Enoxacin 400 mg Tablets Oral 0.6 2.7 45 320.33 −2.73 −0.20 −2.15 0.07 −1.60 7 2 85.36
Eprosartan 600 mg Tablets Oral 0.08 30 30 424.52 −3.72 −4.18 4.80 5 2 92.48
Erythromycin stearate 500 mg Tablets Oral 0.33 6.1 5 1018.40 −3.49 −3.84 1.61 13 5 203.27
Felbamate 600 mg Tablets Oral 0.7 3.4 45 238.25 −2.53 −0.29 −1.93 0.50 2 2 110.07
Fleroxacin 800 mg Tablets Oral 0.87 3.7 72.5 369.35 −2.63 0.24 −0.27 −0.33 6 1 61.72
Fosinoprilat Active metabolite 0.01 43 435.50 −4.64 −0.69 −4.22 4.85 5 2 101.70
Furosemide 80 mg Tablets Oral 66 330.75 2.03 −1.54 −2.38 1.90 5 3 130.02
Iopanoic acid; iodopanoic acid 500 mg Tablets Oral 0.015 133 33 570.94 −4.58 −4.31 4.70 3 2 68.50
Lenalidomide 25 mg Capsules Oral 0.00045 222 66 259.27 −5.76 −2.64 0.53 4 2 88.83
Levocabastine 0.5 mg/mL Solution Ophthalmic 70 420.53 −2.60 1.86 4 1 60.70
Levonorgestrel 0.75 mg Tablets Oral 0.0014 2.1 52 312.46 −5.35 3.60 −4.34 3.31 2 1 40.83
Medroxyprogesterone acetate 500 mg Tablets Oral 0.022 91 44 386.54 −4.24 −4.69 4.01 3 0 63.61
Megestrol acetate 40 mg Tablets Oral 0.002 80 60 384.52 −5.28 −4.57 3.58 3 0 63.61
Meropenem 333.3 mg/mL Solution Injection (i.v.) 70 383.47 0.11 −3.28 6 3 116.86
Niclosamide 500 mg Tablets Oral 0.013 154 327.13 −4.40 −4.10 4.34 4 2 99.56
Nitrofurantoin 100 mg Capsules Oral 0.19 2.1 47 238.16 −3.10 −0.47 −0.19 −1.74 −0.47 5 1 118.74
Norfloxacin 400 mg Tablets Oral 0.75 2.1 29 319.34 −2.63 −1.03 −2.00 −0.32 −0.78 6 2 75.12
Orlistat 120 mg Capsules Oral 1 495.75 −7.63 8.61 3 1 86.97
Paliperidone 9 mg Tablets Oral 0.01125 3.2 59 426.50 −4.58 2.52 −2.77 1.12 5 1 76.16
Penicillin V; phenoxymethylpenicillin 500 mg Capsules Oral 0.25 8.0 350.40 −3.15 2.09 −1.54 −2.34 1.94 5 2 102.23
Phenazopyridine hydrochloride 200 mg Tablets Oral 41 213.24 −2.37 2.05 5 2 88.00
Quinupristin 100 mg/mL Solution Injection (i.v.) 3.5 1021.26 −6.15 7.05 12 4 236.20
Rifaximin 550 mg Tablets Oral 0.001 2200 0.035 785.90 −5.90 −7.16 7.24 12 5 205.94
Roxithromycin 300 mg Tablets Oral 0.1 12 12 837.07 −3.92 2.75 −4.95 2.29 16 5 224.19
Sulfadiazine 500 mg Tablets Oral 0.13 15 57 250.28 −3.28 −0.09 −1.00 −1.93 0.10 5 2 99.95
Sulfamethizole 500 mg Tablets Oral 0.25 8.0 86 270.33 −3.03 0.54 −1.11 −1.90 0.42 5 2 102.86
Sulfisoxazole 500 mg Tablets Oral 0.13 15 49 267.31 −3.31 1.01 −0.87 −2.01 0.22 4 2 102.81
Trandolaprilat Active metabolite 402.49 −0.72 2.31 6 3 115.68
Triclabendazole sulfoxide Active metabolite 6.5 375.66 −4.52 4.36 1 1 52.01
Valsartan 320 mg Tablets Oral 0.18 7.1 13 435.53 −3.38 −4.77 4.86 6 2 113.69
Vitamin B2 (riboflavin) 100 mg Tablets Oral 0.11 3.6 75 376.37 −3.53 −1.46 −2.64 −0.73 9 5 161.81

Table V.

Measured and In Silico Data for 11 BDDCS Class 0 Drugs

Generic name Maximum strength dose value Maximum strength dose unit Formulation Route Measured solubility (mg/mL) Dose number % Excreted unchanged in urine MW drug Measured LogS molar Measured LogP Measured LogD74 minVSLgS 3–7.5 CLogP HBA HBD PSA
Amphetamine sulfate 10 mg Tablets Oral 30 0.001 40 135.21 −0.65 1.76 1.54 1.25 1.74 1 1 27.97
Atracurium 10 mg/mL Solution Injection (i.v.) 8.5 929.17 −7.00 3.50 10 0 126.97
Chlorphentermine 25 mg Tablets Oral 17 183.68 2.60 0.40 0.41 2.85 1 1 27.97
Chlorpropamide 250 mg Tablets Oral 2.2 0.5 20 276.74 −2.10 2.27 −0.13 −2.66 2.35 3 2 84.94
Cisatracurium besylate 10 mg/mL Solution Injection (i.v.) 8.5 929.17 −7.56 3.50 10 0 126.97
Dextroamphetamine 15 mg Tablets Oral 1 0.06 40 135.21 −2.13 1.76 1.54 1.29 1.74 1 1 27.97
Diethylcarbamazine citrate 100 mg Tablets Oral 63.7 0.006 35 199.30 −0.50 1.08 −0.69 1.62 2 0 21.80
Mecamylamine 2.5 mg Tablets Oral 212 0.00005 50 167.30 0.10 1.77 2.83 1 1 14.57
Methamphetamine 5 mg Tablets Oral 1000 0.00002 40 149.24 0.83 0.99 1.89 1 1 14.57
Phenmetrazine 25 mg Tablets Oral 2.5 19 177.25 −1.85 1.50 −0.20 1.67 2 1 23.37
Vitamin C; ascorbic acid 1000 mg Capsules Oral 333 0.01 25 176.13 0.28 −1.85 0.92 −1.76 5 4 117.30

Figure 3 depicts a box plot of the measured solubility values (representing about 68% of drugs listed in Tables I, II, III, and IV) used for assigning BDDCS classification. Class 2 and 4 drugs are less soluble than class 1 and 3 drugs, but there is a considerable overlap since the highest dose strength also affects the assignment. Further analysis with respect to the in silico predicted solubility values is addressed below.

Fig. 3.

Fig. 3

Box plot of Log10 measured solubility values used for the BDDCS classification against BDDCS categories. Arrows pointing left show the mean, arrows pointing right the median; the shaded area indicates the 95% confidence interval, while the box itself is the interquartile range; the horizontal bars indicate the minimum and maximum values; squares are outliers. Class 1, −1.79 ± 1.27 (266 drugs); class 2, −4.29 ± 1.12 (166); class 3, −1.38 ± 1.18 (159); class 4, −3.70 ± 0.96 (35)

Percent Excreted Unchanged in the Urine (%Urine)

Although the FDA (4) and EMA (9) guidances list 90% and 85% absorption, respectively, as a cutoff for high permeability, Wu and Benet (1) believed that a 70% cutoff for BDDCS would be sufficient since the purpose of BDDCS was not to provide a regulatory exemption but rather to make a prediction of drug disposition. As noted above, Wu and Benet (1) found that there were very few drugs in which the percent of dose metabolized fell between 30% and 70%. One may be tempted to use the percent urine values in the tables to test this hypothesis, but this would be incorrect since a number of class 3 and class 4 drugs are known to be excreted unchanged in the bile, as are the metabolites of some class 2 and possibly class 1 drugs, depending on the BDDCS class of the metabolite. When a drug is given intravenously, the percent of drug unchanged in the urine is readily obtained. When for a given drug only the oral dosage forms are available, frequently limited human data may be available on a parenteral experimental formulation. In these two previous cases, that is the value listed in Tables I, II, III, and IV. Where only oral human data are available, the authors used their best judgment in correcting the value with a bioavailability parameter. Lowering the cutoff to 70% obviates in most cases any error that would be inherent in classification based on this assumption. However, the criterion for poor metabolism in BDDCS is excretion of unchanged drug both in the urine and in the bile. The extent of biliary excretion of unchanged drug is an experimentally difficult value to obtain in humans for most drugs. But this is the criterion that we have used in the assignment of BDDCS classification for the more than 900 drugs listed in the tables. It will be obvious in reviewing Tables III and IV that a number of class 3 and class 4 compounds show very low values for %Urine. For example, erythromycin is listed in Table III with 4% excreted unchanged in the urine; however, only 15% of an erythromycin dose is metabolized with more than 80% excreted unchanged in the bile. Thus, for the class 1 and 2 drugs in Tables I and II, the low percent urine does reflect fairly accurately the degree of metabolism since for these compounds it is usually the metabolites that are excreted into the bile, not the parent drug. However, for the class 3 and the class 4 compounds, the assignment was not made based only on the percent urine data value in Tables III and IV. The box plot depicted in Fig. 4 reflects these differences between classes 1 and 2 versus classes 3 and 4, with the very wide standard deviations below the mean for classes 3 and 4 reflecting the importance of biliary excretion in these assignments.

Fig. 4.

Fig. 4

Box plot of%Urine against BDDCS. Key: as in Fig. 3. Class 1, 5.3 ± 6.8 (303); class 2, 3.4 ± 6.3 (227); class 3, 61.3 ± 24.4 (243); class 4, 47.8 ± 27.1 (50)

As mentioned earlier, Benet et al. (2) proposed that ≥90% metabolism could be an additional criterion that regulatory agencies may use in confirming that a drug was more than 90% absorbed. In that paper, Benet et al. (2) restricted the metabolic processes to those that would only occur following absorption such as cytochrome P450 metabolism or metabolism by phase II enzymes found in the gut or the liver. However, in the present compilation, the metabolism criterion for BDDCS assignment does not limit the metabolic processes to these enzymes only. In the present tables, when a drug is metabolized 70% or more, it is classified as highly metabolized and if the metabolism is <70% is categorized as poorly metabolized (readers will note in Fig. 4 that five class 1 and 2 drugs show between >30% and ≤40% excreted unchanged. For these compounds, it is the authors’ belief that these drugs operate more like the assignment made).

Maximum Strength Dose

For US-approved drugs, the maximum dose strength is taken from the package insert. In a number of cases, we have included drugs in the tables that have been removed from the market and drug products where a package insert was not available. In those cases, the maximum strength dose was selected based on an evaluation of literature data.

Figure 5 is a box plot of the −Log10 of the maximum strength dose (molar) against BDDCS. It appears that class 4 drugs have the highest dose (molar) compared with other BDDCS classes, whereas class 1 drugs have the lowest strength. This most likely relates to differences in bioavailability, but may also relate to differences in efficacy. The more lipophilic highly metabolized drugs tend to be more active toward wanted and off targets because of a higher capability of nonspecific interactions. Therefore, it is more likely that drugs that are less lipophilic and less metabolized are given at a higher dose since they are probably less potent and since there is less risk of toxicity.

Fig. 5.

Fig. 5

Box plot of the −Log10 of the maximum strength dose (molar) against BDDCS. Key: as in Fig. 3. Class 1, 4.12 ± 1.01 (288); class 2, 3.79 ± 0.97 (236); class 3, 3.67 ± 1.13 (163); class 4, 3.24 ± 0.69 (43)

BDDCS Classification and Dose Number

High versus low solubility was determined using the FDA/EMA criteria of the maximum strength dose of the drug at its lowest solubility over the pH range of 1–7.5 being soluble in 250 mL of water at 37°C. The solubility cutoff may be expressed as the dose number, which is calculated as the highest dose strength (milligrams) divided by 250 mL and the lowest solubility (milligrams per milliliter). When the dose number is ≤1.0, the drug is considered to have high solubility; when the dose number is >1.0, the drug is considered to have low solubility. Using the solubility (dose number) and the percent metabolism criteria discussed above, the BDDCS class was assigned. For non-orally dosed drugs and active metabolites, no dose number is given in the tables, and the BDDCS assignment is based on the best estimate of the relevant solubility as determined by the authors. This opens the possibility of a more refined system, the dose-dependent BDDCS, dBDDCS. Such a system, based on evaluating multiple strength doses, could highlight “class migration,” which is likely to occur for some drugs, versus “class propensity.” We anticipate that some drugs will migrate to a neighboring class depending on dose strength, whereas most drugs, however, are likely to show preference for one class only. By migrating existing class 4 drugs toward class 3 or class 2 drugs toward class 1, one is likely to obtain improved biopharmaceutical characteristics; thus, FDA approval for novel formulations can be requested using a drug repurposing mechanism (36) under Section 505(b) (2) of the Federal Food, Drugs and Cosmetic Act.

Class Zero

For a number of drugs, such as amphetamine, changes in urinary pH affect the extent of metabolism. Therefore, it is not possible to assign a BDDCS class. It appears for the 11 drugs listed in Table V that they all are predominantly highly soluble in water and thus would probably be BCS class 1 drugs, or BDDCS class 1 or class 3 depending upon urine pH.

MLogP and MLogD7.4

When no active transport processes are involved, pharmaceutical scientists expect lipid/water partition coefficients to be correlated with drug permeability. The Lipinski Rule of Five (3739) was an attempt to define the upper limits of lipophilicity for developing NMEs that are likely to be orally available. As noted above, Takagi et al. (3) evaluated the correlation of measured LogP and calculated LogP with BCS high versus low human jejunal permeability rate compounds, finding that the correlation only held about two thirds of the time. Since there is interest in these parameters and following our guideline of attempting to use measured experimental values when available in making predictions, we have included in Tables I, II, III, IV, and V values for measured LogP and measured LogD at pH 7.4 when such values are available. Again, individual references for the values are not included. However, in the section below, we will comment on prediction differences and accuracy with respect to in silico calculations. Figure 6 is a box plot of the measured LogD values at pH 7.4 against BDDCS assignment.

Fig. 6.

Fig. 6

Box plot of MLogD 7.4 values against BDDCS. MLogD 7.4 for class 2, 2.11 ± 1.91 (121) is the highest among all classes. Class 1, 1.24 ± 1.68 (220); class 3, −1.26 ± 2.19 (110); and class 4 −0.42 ± 1.77 (20). Key: as in Fig. 3

This provides some partial explanation for the food effects mentioned earlier. BDDCS class 2 drugs have high-fat solubility, as illustrated by their higher measured LogD7.4 (Fig. 6), compared with other classes. Under high-fat meal conditions, higher amounts of drug are therefore likely to be solubilized in the intestinal contents and become available to the enterocytes for (passive) absorption. However, we do not see a similar effect for the more hydrophilic, poorly soluble class 4 drugs. Since BDDCS class 1 drugs already are solubilized, they would receive no benefit from increased lipid solubilization.

IN SILICO PARAMETERS

As discussed above, BDDCS assignments were based on the measured parameters of extent of metabolism and solubility, although in the latter case, for extremely poorly soluble and very highly soluble compounds, a numerical value is not always available. However, it is also useful to analyze how well or how poorly in silico parameters can predict the BDDCS classification and to use this type of computation to make other predictions. Thus, for each compound in the tables, we also include: the molecular weight of the listed compound; the calculated LogP (CLogP) using the method of Leo (40); the number of hydrogen bond donors (HDo) for the active moiety; the number of hydrogen bond acceptors (HAc) for the active moiety; the polar surface area (PSA) calculated using the method of Clark (41); and the log of the lowest water solubility calculated over the pH range 3–7.5 (minVSLgS; VolSurf+), as proposed by Cruciani et al. (42,43). We also calculated (and list in Supporting Info) the solubility of each drug in its neutral form using Tetko’s solubility in water (TLogSw) prediction using ALOGPS 2.1 [see (44)]. We hope that this parameter compilation and discussion will be valuable to investigators trying to develop better prediction methods.

Solubility and Dose Number

Both in silico solubility predictions correlate poorly with the measured values, although the VolSurf+ correlation (r2 = 0.33) is somewhat better than the ALOGPS solubility (r2 = 0.24). However, even with these poor correlations, the predicted dose numbers (cDose Number) with the calculated VolSurf+ solubility were reasonable for class 1, 2, and 3 drugs. Results for the VolSurf+ (and ALOGPS) solubilities were as follows: Class 1 drugs are classified with an accuracy of 78.6% (54.3%), class 2 with an accuracy of 76.9% (84.3%), and class 3 with accuracy of 89.4% (65.7%). The predictive accuracy for class 4 drugs was very poor (39.5%) for the VolSurf+ prediction, but reasonable when the pH effect is not considered (79.1% when using ALOGPS). Upon further examination, 17 of these drugs are well predicted by cDose Number. These 17 drugs have a “class2-like” CLogP profile (average CLogP = 3.76). The deviation between measured LogS and minVSLgS is on average 0.66 for these drugs. For the 26 class 4 drugs that are poorly predicted, the average CLogP is 0.27, and the average measured LogP is 0.11. The deviation between measured LogS and minVSLgS is on average around 3.00. A number of these 26 drugs are likely to exist as zwitterions at pH below 7.5; several among them are fluoroquinolone antibiotics. In particular, for enoxacin, ciprofloxacin, norfloxacin, and cinoxacin, solubility prediction based on melting point and LogD failed, probably due to self-association (45). In support of this hypothesis, Ross and Riley (45) noted that the solubility of these drugs at the same pH increases with temperature. The lowest measured solubility data for class 4 drugs are observed when these molecules behave as zwitterions (pH 7). Therefore, the reason for class 4 assignment prediction error is likely to relate to self-association for drugs that behave as zwitterions. This is less likely to play a role in the digestive tract since varying pH conditions, the presence of counterions, and surfactants (e.g., bile acids) might diminish the importance of self-association. Despite the relatively high success of the ALOGPS method for class 4, solubility predictions for these zwitterions in neutral form, which essentially ignores the pH effect, should be used with caution.

Partition Coefficient and Extent of Metabolism

As discussed above, a high extent of metabolism is expected for high LogP compounds and vice versa. In contrast to the predicted versus measured solubility values discussed above, the correlation between MLogP versus CLogP is quite good (r2 = 0.83). Thus, it might be expected that both MLogP and CLogP would reasonably well predict class 1 and 2 drugs versus class 3 and 4 drugs, with the results shown in Fig. 7. For either measured or calculated LogP > 2, the probability of extensive metabolism is 80.1% and 79.3%, respectively. For LogP values <0, the probability of poor metabolism is 83.5% for MLogP and 83.9% for CLogP. However, when LogP values range from 0 to 2 (31.7% of drugs for MLogP and 27.5% of drugs for CLogP), the probability assignments are not very good, with MLogP doing somewhat better for extensively metabolized drugs and CLogP doing somewhat better for poorly metabolized drugs (Fig. 7). As with solubility predictions, the poorest probability of extent of metabolism was found for class 4 drugs (data not shown).

Fig. 7.

Fig. 7

Probability of extensive metabolism in different measured LogP and CLogP ranges. The plot show the probability of being extensively metabolized in a specific LogP (CLogP) range if a set with equal number of extensively and poorly metabolized drugs is considered

Summary of In Silico Parameters for Orally Dosed Drugs

Figure 8 highlights the in silico parameters for 698 orally dosed drugs. As expected, CLogP is higher and PSA lower for extensively metabolized (class 1 and 2) drugs. However, an unexpected finding is the very marked similarity for solubility and (somewhat less) for CLogP predictions for class 1 and 4 drugs. This reflects the inherent confounding aspects of the dose number calculation used in both BDDCS and BCS, as discussed earlier in this manuscript and by Rinaki et al. (46), and the generally poor predictability for class 4 drugs. We also calculated the polar surface area density (PSAD = MW/PSA) and are struck by the empirical observation of the similarity and low coefficient of variation for PSAD (Fig. 8) for the class 3 and class 4 poorly metabolized drugs. As noted by the arrows in Fig. 8, class 2 and class 3 drugs exhibit the extremes for the in silico measures of solubility and partition coefficient.

Fig. 8.

Fig. 8

In silico parameters for 698 orally dosed drugs. For each, calculated property average value and standard deviation are shown. PSAD (polar surface area density) = MW/PSA

OTHER COMMENTS

The listing of drugs in the five tables is essentially inclusive of small molecules only as most peptide and protein drugs were not included in the compilation. However, there are exceptions, such as the inclusion of exenatide and liraglutide. We note that all the drugs listed in the 2011 Goodman and Gilman compilation (47) are included in the present table except, for streptokinase and interferon alpha and beta. Since many drugs on the market are in fact pro-drugs, when data were available, our listing includes the parameters for some of the better characterized active metabolites, even when the metabolite itself was not a commercially available product and thus the maximum strength dose does not exist. For example, see flurazepam and desalkylflurazepam (both Table I) as well as losartan (Table II) and EXP3174 (Table III). In those cases, the BDDCS classification was made based on the dose of the parent drug, the known fraction conversion to the active species, and the solubility of the active metabolite. The finding of Wu and Benet (1) that very few drugs fall in the 30–70% metabolism range does not mean that there are no such drugs. For example, in Table III, moxifloxacin HCl has been shown to be metabolized 52% (14% as a glucuronide and 38% as a sulfate conjugate) while 45% is excreted unchanged (25% in the feces and 20% in the urine). Similarly, palonosetron HCl (Table III) is excreted 40% unchanged and 50% via CYP enzymes, while phenazopyridine (Table IV) is excreted 41% unchanged and 49% metabolized.

WHERE CAN ADDITIONAL INFORMATION BE FOUND?

Oprea and co-workers (48,49) have indexed the information for over 1,260 drugs in WOMBAT-PK, a database that includes pharmacokinetic parameters (such as those indexed in Goodman–Gilman), physicochemical properties, and target bioactivities (see http://www.sunsetmolecular.com/index.php?option=com_content&view=article&id=16&Itemid=11). WOMBAT-PK contains additional information related to the BDDCS entries described in the tables. However, all pertinent data used to categorize individual drugs for the BDDCS classification are provided here. Further information about drugs can also be found in public resources as follows: Chemical information, physicochemical properties, and bioactivities are compiled in PubChem (http://pubchem.ncbi.nlm.nih.gov/), ChEMBL (https://www.ebi.ac.uk/chembl/), and ChemSpider (http://www.chemspider.com/). Detailed drug information can be retrieved at DailyMed (http://dailymed.nlm.nih.gov/dailymed/about.cfm), DrugBank (http://drugbank.ca/), and European Medicines Agency (http://www.ema.europa.eu/).

Information as found in the five tables, together with the physicochemical properties and target bioactivities, can serve as a source for investigating and predicting the characteristics of NMEs in drug development. However, we add a further caution concerning in silico methodologies that may be developed based on our compilation of data for drugs on the market at some time. This is illustrated in Fig. 9 where we have compiled the BDDCS classification of the orally dosed drugs in our tables. In Fig. 9, we compare this distribution of commercially available drugs with our predictions of the distribution of total NMEs that have at some time been dosed to humans, particularly in the last decade. Based on our prior evaluation of high-activity medicinal chemistry compounds (50), we estimate that of the drug candidates being investigated by the industry, up to 70% are large molecular weight, lipophilic, poorly soluble class 2 compounds, another 20% are not only poorly soluble but also poorly permeable class 4 compounds, while only 10% are high-soluble class 1 and class 3 compounds. Thus, when in silico methodologies are developed and tested on commercially available drugs, it is important to remember that 40% of drugs are BDDCS class 1, and as predicted in Fig. 2, these compounds will not exhibit disposition characteristics affected by transporters in the gut and liver, whereas up to 95% of NMEs are likely to be affected. Therefore, in testing such new methodologies, it is critical that both the training and test compound sets have a strong representation of compounds other than BDDCS class 1.

Fig. 9.

Fig. 9

BDDCS distribution of 698 marketed, immediate release, orally dosed drugs in the present table versus the predicted distribution of small molecule NMEs being developed by the industry

ELECTRONIC SUPPLEMENTARY MATERIAL

Below is the link to the electronic supplementary material.

ESM 1 (5.6MB, doc)

(DOC 5.55 mb)

ESM 2 (274.9KB, xlsx)

(DOC 274 kb)

Acknowledgments

The authors were supported in part in preparation of the five tables and this manuscript by NIH grants GM-61390, GM-75900 and GM-90457 (LZB), and by GM-095952, MH-084690, and CA-118100 (TIO). We thank Molecular Discovery Ltd. and Professor Cruciani for the VolSurf+ suite license.

Supporting Info Available

An excel file is available as supporting info containing the following data for the 927 drugs dataset: name, BDDCS class, max dose strength value, max dose strength unit, formulation, route, measured solubility, dose number, % excreted unchanged in urine, MW drug, MW solution, pDose, measured LogS molar, measured LogP, measured LogD7.4, ALOGPS 2.1 solubility, cDose Number (ALOGPS based), minVSLgS, cDose Number (minVSLgS based), cLogP, HBA,HBD, PSA, and violations to Rules of Five. Definitions for the terms used only in the supporting info file may be found at the end of that data set. In addition, box plots of minVSLgS, ALOGPS 2.1 solubility, MLogP, cLogP, MW, PSA parameters against BDDCS are provided.

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