the vasoconstrictor action of serotonin and its interaction with drugs ( methysergide , pizotifen , cyproheptadine , ergotamine , dihydroergotamine ) that have serotonin-antagonistic properties and that are used in the treatment of migraine were studied on isolated feline and human intracranial and extracranial arteries in vitro .
C0014710
ergotamine
C0149931
migraine