pentobarbital will lower the level or effect of verapamil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Keep an eye on.Keep an eye on Closely (two)pentobarbital will reduce the extent or effect of suvorexant by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Powerful CYP3A4 inducers could lessen s