pentobarbital will decrease the level or effect of estropipate by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.pentobarbital will decrease the level or effect of diazepam buccal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Datorskärm. Stark or moderate CYP3A4 inducers may increase rate of diaz