Pentobarbital will decrease the level or effect of vinblastine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown. pentobarbital will decrease the level or effect of eletriptan by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. pentobarbital will decrease the level or effect of glecaprevir/pibrentasvir by affecting hepatic/... https://gatherbookmarks.com/story21169989/the-ultimate-guide-to-pentobarbital-de-sodium