Fentanyl Hexal Fentanyl Citrate Clarithromycin
ModerateClarithromycin is one of the medicines that can make fentanyl citrate work more strongly or for longer than expected when the two are taken together. The leaflet also lists some other medicines in the same group, including ketoconazole, itraconazole and troleandomycin, as well as the CNS depressant drugs (medicines that slow down the brain and nervous system).
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.