pentobarbital will lessen the level or influence of nisoldipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Monitor.pentobarbital will lessen the level or effect of elbasvir/grazoprevir by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. The therapeutic influence of elbasvir/grazoprevir might be decr