Butabarbital will lessen the extent or effect of nitrendipine by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Importance Unknown. butabarbital will reduce the extent or result of estrogens esterified by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Keep an eye on. butabarbital will minimize the level or effect of alprazolam by affecting hepatic/int... https://emperorl097wbe1.blogars.com/profile