Pentobarbital will lower the level or impact of voriconazole by impacting hepatic enzyme CYP2C9/ten metabolism. Small/Significance Unidentified. pentobarbital will reduce the extent or result of phenytoin by affecting hepatic enzyme CYP2C9/ten metabolism. Use Caution/Monitor. pentobarbital will reduce the level or impact of bosentan by impacting hepatic enzyme CYP2C9/ten metabolism. I... https://lordy852hij0.wikiannouncement.com/user