title: Preoperative medication.
mesh_terms: D000701:Analgesics, Opioid; D014151:Anti-Anxiety Agents; D014150:Antipsychotic Agents; D001463:Barbiturates; D001569:Benzodiazepines; D004358:Drug Therapy; D006801:Humans; D009458:Neuroleptanalgesia; D010640:Phenothiazines; D011229:Preanesthetic Medication; D011300:Preoperative Care
chemical_list: D000701:Analgesics, Opioid; D014151:Anti-Anxiety Agents; D014150:Antipsychotic Agents; D001463:Barbiturates; D010640:Phenothiazines; D001569:Benzodiazepines