NOT KNOWN FACTS ABOUT WHERE TO PHENOBARBITAL

Keep an eye on Closely (1)phenobarbital will decrease the extent or impact of fentanyl transmucosal by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Coadministration of fentanyl with CYP3A4 inducers may lead to the minimize in fentanyl plasma concentrations, insufficient efficacy or, maybe, progress of the