title: Intramuscular butorphanol and meperidine in postoperative pain.
abstract: Butorphanol, 1, 2, and 4 mg/70 kg, and meperidine, 40 and 80 mg/70 kg, were compared for analgesic activity and side effects in 104 hospitalized postoperative patients. Butorphanol proved to be 30 to 40 times as potent as meperidine on a weight basis. Both medications provided maximum pain relief approximately 1 hr after administration. The most common side effect in all groups was drowsiness.
mesh_terms: D000328:Adult; D000368:Aged; D000700:Analgesics / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D007273:Injections, Intramuscular; D008297:Male; D008614:Meperidine / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D008875:Middle Aged; D009019:Morphinans / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D010149:Postoperative Pain / Q000188:drug therapy*
chemical_list: D000700:Analgesics; D009019:Morphinans; D008614:Meperidine