title: A double-blind comparative study of carisoprodol, propoxyphene, and placebo in the management of low back syndrome.
mesh_terms: D000328:Adult; D001416:Back Pain / Q000188:drug therapy* / Q000503:physiopathology; D002328:Carisoprodol / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D011431:Dextropropoxyphene / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010919:Placebos
chemical_list: D010919:Placebos; D002328:Carisoprodol; D011431:Dextropropoxyphene