pentobarbital will lessen the level or result of clozapine by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Monitor.pentobarbital will lessen the level or influence of ixabepilone by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Check.pentobarbital will minimize the level or result of sulfamethoxazole by im