Table 4.
S* values for CBZ, DNZ, and PTB cocrystals in solutions with drug solubilizing agents, SLS, Tween, and lipid formulation.a [70].
Cocrystal | pH | S*predb (mM) | S* obsc (mM) |
---|---|---|---|
CBZ-SLC (1:1) | 3.0 | 3.3 | 4.6 |
CBZ-SAC (1:1) | 2.2 | 10.5 | 12.0 |
CBZ-4ABA-HYD (2:1) | 4.0 | 21.8 | 22.0 |
CBZ-SUC (2:1) | 3.1 | 48.0 | 47.6 |
DNZ-HBA (1:1) | 5.0 | 90.0 | >32 |
DNZ-VAN (1:1) | 5.0 | 20.3 | >17 |
PTB-CAF (1:1) | nr | 58.6 | <222 |
PTB-PIP (2:1) | nr | 17.8 | <246 |
Solubilizing agents are: aqueous solution of SLS for CBZ cocrystals, Tween 80 (150 mM, pH 5.0) for DNZ, and lipid formulation (Captex 355/Capmul MCM (1/3): Cremophor EL (3:7)) for PTB as described in the text.
S* predicted from equation 12 for 1:1 and 2:1 cocrystals.
Determined from the intersection of Scocrystal,T and Sdrug,T curves or measurement of cocrystal and drug solubilities in solubilizing agents.
After ref. [70].