|
|||||
|
|||||
Migraine drugs Derivatives of ergot alkaloids are potent vasoconstrictors and first alpha-adrenoreceptor blocking agents in the acute management of migraine and related vascular headaches, but not for prophylaxis. Ergotamine and ergot derivatives induce uterine contractions and may therefore cause premature labour. Products containing ergotamins or ergot derivatives should therefore be avoided as far as possible during pregnancy.
|