title: Treatment for cancer pain.
mesh_terms: D003932:Heroin / Q000627:therapeutic use*; D006801:Humans; D008614:Meperidine / Q000627:therapeutic use*; D009369:Neoplasms / Q000150:complications*; D010146:Pain / Q000188:drug therapy*
chemical_list: D003932:Heroin; D008614:Meperidine