[ meth-uh-sur-jahyd ]
/ ˌmɛθ əˈsɜr dʒaɪd /
an ergot alkaloid derivative, C21H27N3O2, used in the prophylaxis and treatment of migraine and cluster headaches.
- methylthionine chloride,
Origin of methysergide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019