title: Preliminary study of lupulin-dihydrocodeine in pain syndromes.
mesh_terms: D000328:Adult; D000368:Aged; D003061:Codeine / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000188:drug therapy*; D010946:Plants, Medicinal
chemical_list: D003061:Codeine