Pentobarbital will reduce the extent or impact of parecoxib by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Minimal/Importance Unidentified. pentobarbital will lower the level or result of ixabepilone by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Keep an eye on. pentobarbital will minimize the level or outcome of darifenacin by impacting hepatic/int... https://jinnahd333wky9.wikifordummies.com/user