pentobarbital will reduce the level or effect of nisoldipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Keep an eye on.pentobarbital will lower the extent or impact of conivaptan by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Watch.Use Warning/Keep an eye on. CYP3A4 inducers could raise the metaboli… Read More