Pentobarbital will lower the level or effect of nitrendipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown. pentobarbital will lessen the level or effect of armodafinil by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Minimal/Importance Unfamiliar. pentobarbital will minimize the level or influence of tolterodine by influencing hepatic... https://clintf788oet7.wikicommunication.com/user