pentobarbital will lower the level or impact of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.pentobarbital will lessen the extent or effect of elbasvir/grazoprevir by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. The therapeutic result of elbasvir/grazoprevir may be diminishe