dihydroergotamine

n. a semisynthetic derivative of the ergot alkaloid ergotamine, used in the treatment of acute migraine headache. It is a potent vasoconstrictor due to its ability to antagonize alpha-adrenergic receptors in blood-vessel walls as well as serotonin and dopamine receptors. U.S. trade names: DHE 45; Migranal.

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Psychology term of the day

December 24th 2024

tight culture

a homogeneous social group whose members have the same cultural attributes (e.g., language, social customs, religion) and tend toward a rigid adherence to the collective norms of their group. Compare loose culture. [defined by U.S. psychologist Harry C. Triandis (1926– )]