Observe Carefully (one)oxcarbazepine will minimize the level or effect of fentanyl by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Watch Carefully. Coadministration of fentanyl with CYP3A4 inducers could lead on to the minimize in fentanyl plasma concentrations, not enough efficacy or, maybe, progress of the withdrawal synd

phenytoin will decrease the level or effect of fentanyl by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Carefully. Coadministration of fentanyl with CYP3A4 inducers could lead on to the lower in fentanyl plasma concentrations, deficiency of efficacy or, possibly, progress of the withdrawal syndrome inside of a affec