Pentobarbital will decrease the extent or result of lumacaftor/ivacaftor by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. pentobarbital will lessen the level or outcome of atazanavir by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Insignificant/Significance Not known. pentobarbital will reduce the extent or effect of etonogestrel by affecting hepati... https://torreyv466kzq9.wikiinside.com/user