---

• n  an alkaloid derived from ergot that is less toxic than ergot; causes constriction of blood vessels and is used to treat migraine

• Ergotamine and dihydroergotamine (DHE) are doubly effective.
• When such simple remedies as aspirin fail, the standard treatment has been shots of ergotamine tartrate (Gynergen).
• The two doctors recommended injections of ergotamine tartrate as soon as the headache starts.