Pentobarbital will decrease the level or effect of vinblastine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown. pentobarbital will decrease the level or effect of loratadine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. pentobarbital will decrease the level or effect of pantoprazole by affecting hepatic/intestinal e... https://bookmarkspring.com/story15390355/pentobarbital-cosa-%C3%88-una-panoramica