pentobarbital will lower the extent or effect of imatinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minimal/Importance Unknown.pentobarbital will lower the extent or impact of elbasvir/grazoprevir by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. The therapeutic effect of elbasvir/grazoprevir may be minimi… Read More