pentobarbital will lower the level or influence of vinorelbine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Insignificant/Significance Not known.pentobarbital will lessen the extent or influence of levamlodipine by impacting hepatic/intestinal enzyme CYP3A4 metabolism.fentanyl transdermal and pentobarbital both increase sedation. Preve… Read More