pentobarbital will lessen the extent or influence of fesoterodine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Observe.pentobarbital will lower the extent or effect of mavacamten by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated.pentobarbital will lessen the extent or impact of ondansetron by affecti… Read More