Pentobarbital will lessen the extent or result of iloperidone by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Check. pentobarbital will reduce the level or impact of fesoterodine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Keep an eye on. pentobarbital will lower the level or outcome of tacrolimus by impacting hepatic/intestinal enzyme https://frankb891wpi4.wikidirective.com/user