Pentobarbital will lower the level or impact of verapamil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. pentobarbital will reduce the extent or result of disopyramide by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Minimal/Significance Not known. pentobarbital will lower the extent or effect of atogepant by impacting hepatic/intestinal enzy... https://emiliohygns.buyoutblog.com/31050814/not-known-factual-statements-about-is-nembutal-legal-in-uk