pentobarbital will reduce the extent or effect of vinorelbine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Insignificant/Significance Unidentified.pentobarbital will lessen the extent or impact of doxorubicin liposomal by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Keep track of.fentanyl transdermal and pentoba