pentobarbital will lessen the extent or result of darifenacin by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Check.pentobarbital will minimize the extent or effect of bortezomib by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Observe.pentobarbital improves toxicity of buprenorphine, prolonged-perform