title: Serotonergically active agents in levodopa-induced psychiatric toxicity reactions.
mesh_terms: D000639:Amitriptyline / Q000627:therapeutic use; D006212:Hallucinations / Q000188:drug therapy / Q000209:etiology*; D006801:Humans; D007980:Levodopa / Q000009:adverse effects*; D008784:Methysergide / Q000009:adverse effects / Q000627:therapeutic use; D012701:Serotonin / Q000502:physiology*; D012702:Serotonin Antagonists / Q000009:adverse effects; D012890:Sleep / Q000187:drug effects
chemical_list: D012702:Serotonin Antagonists; D000639:Amitriptyline; D012701:Serotonin; D007980:Levodopa; D008784:Methysergide