Butabarbital will reduce the level or effect of nitrendipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Small/Importance Unknown. butabarbital will reduce the level or outcome of glecaprevir/pibrentasvir by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Working with this medication with any of the following may possibly cause an increased hazard of specified Uni... https://owenm024lnp9.magicianwiki.com/user