Butabarbital will decrease the extent or result of nifedipine by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Importance Mysterious. butabarbital will minimize the extent or impact of levamlodipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. buprenorphine, prolonged-performing injection and butabarbital each improve sedation. Stay away from or Use Alter... https://carly346qst0.wikiexcerpt.com/user