title: A controlled clinical trial of a muscle relaxant analgesic combination in the treatment of acute lumbago.
mesh_terms: D000082:Acetaminophen / Q000627:therapeutic use*; D000208:Acute Disease; D000328:Adult; D001416:Back Pain / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D004341:Drug Evaluation; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009966:Orphenadrine / Q000627:therapeutic use*
chemical_list: D000082:Acetaminophen; D009966:Orphenadrine