title: Butorphanol: a double-blind evaluation in postoperative patients with moderate or severe pain.
mesh_terms: D000769:Anesthesia, Inhalation; D001285:Atropine; D002986:Clinical Trials as Topic; D003503:Cyclobutanes / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use; D003975:Diazepam; D004305:Dose-Response Relationship, Drug; D004737:Enflurane; D005260:Female; D006221:Halothane; D006801:Humans; D006919:Hydroxyzine; D007273:Injections, Intramuscular; D008297:Male; D009019:Morphinans / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D009020:Morphine / Q000627:therapeutic use; D009609:Nitrous Oxide; D010149:Postoperative Pain / Q000188:drug therapy*; D011229:Preanesthetic Medication; D013997:Time Factors
chemical_list: D003503:Cyclobutanes; D009019:Morphinans; D006919:Hydroxyzine; D009020:Morphine; D001285:Atropine; D004737:Enflurane; D009609:Nitrous Oxide; D003975:Diazepam; D006221:Halothane