pentobarbital will lower the level or result of theophylline by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Observe.pentobarbital will reduce the extent or impact of doxorubicin by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Watch.pentobarbital will decrease the extent or result of verapamil by impactin… Read More