title: Six potent analgesic drugs. A double-blind study in post-operative pain.
mesh_terms: D000328:Adult; D000700:Analgesics / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D007540:Isonipecotic Acids / Q000627:therapeutic use; D007981:Levorphanol / Q000627:therapeutic use; D008297:Male; D008614:Meperidine / Q000627:therapeutic use; D008875:Middle Aged; D009570:Nitriles / Q000627:therapeutic use; D009892:Opium / Q000627:therapeutic use; D010149:Postoperative Pain / Q000188:drug therapy*; D010423:Pentazocine / Q000009:adverse effects / Q000627:therapeutic use; D010638:Phenoperidine / Q000627:therapeutic use; D010880:Piperidines / Q000627:therapeutic use; D011175:Positive-Pressure Respiration; D012890:Sleep / Q000187:drug effects
chemical_list: D000700:Analgesics; D007540:Isonipecotic Acids; D009570:Nitriles; D010880:Piperidines; D007981:Levorphanol; D009892:Opium; D008614:Meperidine; D010638:Phenoperidine; D010423:Pentazocine