Butabarbital will minimize the extent or impact of nitrendipine by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Slight/Importance Unidentified. butabarbital will lower the extent or effect of levamlodipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Butabarbital belongs to the team of medicines called barbiturates. They act inside the central nervous techniqu... https://thomase813lpr9.wikidirective.com/user