ABOUT HOW MUCH FENTANYL HAS BEEN SEIZED

If coadministration of CYP3A4 inhibitors with fentanyl is essential, observe patients for respiratory depression and sedation at Regular intervals and consider fentanyl dose adjustments until finally stable drug effects are reached.Watch Closely (2)efavirenz will lessen the level or effect of fentanyl by affecting hepatic/intestinal enzyme CYP3A4 m