title: Orphenadrin-paracetamol in backache-a double-blind controlled trial.
mesh_terms: D000082:Acetaminophen / Q000008:administration & dosage*; D000328:Adult; D000368:Aged; D001241:Aspirin / Q000627:therapeutic use; D001416:Back Pain / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D004357:Drug Synergism; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009966:Orphenadrine / Q000008:administration & dosage*
chemical_list: D000082:Acetaminophen; D009966:Orphenadrine; D001241:Aspirin