Pentobarbital will reduce the level or outcome of buprenorphine buccal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Watch. pentobarbital will reduce the level or result of theophylline by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Watch. pentobarbital will lessen the level or impact of alfuzosin by affecting hepatic/intestinal enzyme ... https://elliotteslll.blogs100.com/35070736/5-simple-techniques-for-pentobarbital-sodium-over-the-counter