title: Synthetic enkephalin analogue in treatment of schizophrenia.
mesh_terms: D000328:Adult; D002986:Clinical Trials as Topic; D004341:Drug Evaluation; D004723:Endorphins / Q000627:therapeutic use*; D004745:Enkephalins / Q000627:therapeutic use*; D006212:Hallucinations / Q000188:drug therapy; D006728:Hormones / Q000627:therapeutic use*; D006801:Humans; D008875:Middle Aged; D012559:Schizophrenia / Q000188:drug therapy*
chemical_list: D004723:Endorphins; D004745:Enkephalins; D006728:Hormones