pentobarbital will reduce the level or outcome of doravirine by impacting hepatic/intestinal enzyme CYP3A4 metabolism. pentobarbital will decrease the level or impact of elbasvir/grazoprevir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. The therapeutic influence of elbasvir/grazoprevir may be minimized if coadministe