dihydroergotamine
[ dahy-hahy-droh-ur-got-uh-meen, -min, -ur-guh-tam-een, -in ]
/ daɪˌhaɪ droʊ ɜrˈgɒt əˌmin, -mɪn, -ˌɜr gəˈtæm in, -ɪn /
noun Pharmacology.
an ergot alkaloid, C33H37N5O5, used in the treatment of various types of migraine headache.