title: Letter: Propoxyphene napsylate for heroin addiction.
mesh_terms: D011431:Dextropropoxyphene / Q000008:administration & dosage / Q000627:therapeutic use*; D005069:Evaluation Studies as Topic; D006556:Heroin Dependence / Q000188:drug therapy*; D006801:Humans
chemical_list: D011431:Dextropropoxyphene