Wigraine Pharmacology, Pharmacokinetics, Studies, Metabolism - Ergotamine and Caffeine

Wigraine Pharmacology, Pharmacokinetics, Studies, Metabolism - Ergotamine and Caffeine

CLINICAL PHARMACOLOGY

Ergotamine is an alpha adrenergic blocking agent with a direct stimulating effect on the smooth muscle of peripheral and cranial blood vessels and produces depression of central vasomotor centers. The compound also has the properties of serotonin antagonism. In comparison to hydrogenated ergotamine, the adrenergic blocking actions are less pronounced and vasoconstrictive actions are greater. Caffeine, also a cranial vasoconstrictor is added to further enhance the vasoconstrictive effect without the necessity of increasing ergotamine dosage.