Pentobarbital will decrease the level or effect of hydrocortisone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. pentobarbital will decrease the level or effect of fosamprenavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. pentobarbital will decrease the level or effect of solifenacin by affecting hepatic/intestinal enz... https://sound-social.com/story10514025/pentobarbital-vs-phenobarbital-una-panoramica