Butabarbital will reduce the extent or result of nifedipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Insignificant/Importance Mysterious. butabarbital will minimize the level or outcome of levamlodipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. butabarbital will minimize the extent or influence of diazepam intranasal by affecting hepatic/intestinal enz... https://trumanb878itd1.eedblog.com/profile