Pentobarbital will lessen the level or impact of colchicine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Watch. pentobarbital will lessen the extent or impact of theophylline by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Check. pentobarbital will minimize the level or influence of pazopanib by affecting hepatic/intestinal enzyme CYP3A4 ... https://devinkdtht.activablog.com/30359133/what-type-of-drug-is-nembutal-options