pentobarbital will lower the extent or effect of verapamil by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Keep track of.pentobarbital will decrease the level or effect of levamlodipine by influencing hepatic/intestinal enzyme CYP3A4 metabolism.Contraindicated (one)pentobarbital will lower the level or influence of elbasvir/gr