title: The ingestion of serotonin precursors (L-5-hydroxytryptophan and L-tryptophan) improves migraine headache.
mesh_terms: D006916:5-Hydroxytryptophan / Q000627:therapeutic use*; D006801:Humans; D008784:Methysergide / Q000627:therapeutic use; D008881:Migraine Disorders / Q000188:drug therapy*; D014364:Tryptophan / Q000627:therapeutic use*
chemical_list: D014364:Tryptophan; D006916:5-Hydroxytryptophan; D008784:Methysergide