Ergotamine is a prescription medicine used to treat acute migraine headache. This medicine helps by narrowing the blood vessels thereby relieving the migraine headaches. Pregnancy: UNSAFE ...

Ergot alkaloids were the first antimigraine drugs available. Dihydroergotamine (DHE) is an ergotamine analog (Figure 3). DHE is administered as a nasal spray form (Migranal®, Valeant ...