title: A controlled clinical trial of sustained-action dextropropoxyphene hydrochloride.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D001416:Back Pain / Q000188:drug therapy; D002986:Clinical Trials as Topic; D003692:Delayed-Action Preparations; D011431:Dextropropoxyphene / Q000008:administration & dosage*; D006801:Humans; D007213:Indomethacin / Q000627:therapeutic use
chemical_list: D003692:Delayed-Action Preparations; D011431:Dextropropoxyphene; D007213:Indomethacin