Pentobarbital will minimize the level or result of zonisamide by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Insignificant/Significance Unidentified. pentobarbital will decrease the level or effect of atazanavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Small/Significance Unfamiliar. pentobarbital will lower the level or impact of darifenacin by influencin... https://chestert630efg8.wikijm.com/user