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. 2018 May 9;13(5):e0197061. doi: 10.1371/journal.pone.0197061

Table 1. Pharmacokinetic parameters calculated.

Definition Determination
AUC(0→t) (ng·h/mL) Area Under the Curve from 0 to the time of the last quantifiable concentration Trapezoidal rule
AUC(inf) (ng·h/mL) Area Under the Curve from 0 to infinity AUC(inf)=AUC(0t)+Ctλz
AUMC(last) (ng·h2/mL) Area under the first moment curve to the time of the last quantifiable concentration Trapezoidal rule
AUMC(inf) (ng·h2/mL) Area Under the first Moment Curve from time 0 to infinity AUMC(inf)=AUMC(last)+Ct*tlastλz+Ctλz2
C0 (ng/mL) Initial (or fictive) concentration at time zero for bolus iv adm
Cl (L/h/kg) Total body clearance (iv adm) (after i.v. adm, F = 1) Cl=F*DAUC(inf)
λz Apparent first order terminal elimination rate constant Estimated terminal slope of the linear regression of log-transformed concentration vs. time curve
MRT (0→∞) (h) Mean Residence Time MRT=AUMC(inf)AUC(inf)
t1/2 (min) Terminal elimination half-life or apparent terminal elimination half-life t1/2=Ln2λz
Vz (L/kg) Volume of distribution at terminal phase (iv adm) Vz=Clλz

AUC: area under the curve; AUMC: Area Under the first Moment Curve; C0: extrapolated concentration at time = 0 min; D: Dose; Cl: clearance; F: bioavailability; λz: Apparent first order terminal elimination rate constant; MRT: mean residence time; t1/2: half-life; Vz: volume of distribution.