Butabarbital will decrease the extent or result of amlodipine by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Keep track of. butabarbital will lessen the extent or effect of lumefantrine by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Watch. butabarbital will lower the extent or effect of alprazolam by influencing hepatic/intestinal enzyme... https://glennu532owc4.empirewiki.com/user