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methysergide

methysergide Methysergide is an ergot-derived drug related to lysergic acid diethylamide that blocks serotonin’s effects in blood vessels and gastrointestinal smooth muscle.

Methysergide is an ergot-derived drug related to lysergic acid diethylamide that blocks serotonin’s effects in blood vessels and gastrointestinal smooth muscle. It has been used to help prevent migraine and other vascular headaches and to counter serotonin effects in carcinoid syndrome.

Sources

Drafting source: U.S. National Library of Medicine. Medical Subject Headings (MeSH), 2026 descriptor edition. “Methysergide” (D008784).
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PsychTerms (psychterms.org), CC BY 4.0, version 1. “methysergide.” Development preview.

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methysergide

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Sources

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