Description:
Dihydroergotamine is used to treat migraine headaches. Dihydroergotamine is in a class of medications called ergot alkaloids. It works by tightening blood vessels in the brain and by stopping the release of natural substances in the brain that cause swelling.
Cautions:
Do not take dihydroergotamine if you are taking any of the following medications: antifungals such as itraconazole (Sporanox) and ketoconazole (Nizoral); HIV protease inhibitors such as indinavir (Crixivan), nelfinavir (Viracept), and ritonavir (Norvir); or macrolide antibiotics such as clarithromycin (Biaxin), erythromycin (E.E.S., E-Mycin, Erythrocin), and troleandomycin (TAO).