Table 1.

BCS Classification.

BCS Class	Solubility	Permeability	Drug Molecule Examples
I	High	High	Mefoquine hydrochloride, Nelfnavir mesylate, Quinine sulfate, Clomiphene citrate
II	Low	High	Ibuprofen, Nifedipine, Carbamazepine, Diazepam, Efavirenz
III	High	Low	Amiloride hydrochloride, Amoxicillin, Ethosuximide, Fluconazole, Isoniazid, Salbutamol
IV	Low	Low	Acetazolamide, Dapsone, Doxycycline, Nalidixic acid, Theophylline