Liu, Z.‐Y., Dai, M.‐H., Tao, Y.‐F., Chen, D.‐M., Yuan, Z.‐H. Inhibition of cytochrome P450 2A participating in coumarin 7‐hydroxylation in pig liver microsomes. J. vet. Pharmacol. Therap. 34, 424–429. Five commonly used human cytochrome P450 (CYP) inhibitors were examined for their effects on coumarin 7‐hydroxylase (CYP2A) activity in pig liver microsomes. The K m and V max values for coumarin 7‐hydroxylation in pig liver microsomes were estimated to be 1 μm and 0.26 nmol·mg/min, respectively. The following human CYP inhibitors cau...