title: A controlled study of dextropropoxyphene 1-carboxymethyl-3,7-dimethylxanthine (Z867) IN POSt-operative pain.
mesh_terms: D011431:Dextropropoxyphene / Q000627:therapeutic use*; D004338:Drug Combinations; D006801:Humans; D010146:Pain / Q000188:drug therapy*; D010919:Placebos; D013514:Surgical Procedures, Operative; D013805:Theobromine / Q000627:therapeutic use*
chemical_list: D004338:Drug Combinations; D010919:Placebos; D013805:Theobromine; D011431:Dextropropoxyphene