NOT KNOWN FACTS ABOUT WHERE TO PHENOBARBITAL

Watch Carefully (1)phenobarbital will lessen the extent or impact of fentanyl transmucosal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Keep track of Carefully. Coadministration of fentanyl with CYP3A4 inducers could lead to the lower in fentanyl plasma concentrations, deficiency of efficacy or, quite possibly, developme