title: Naloxone in chronic schizophrenic patients: neuroendocrine and behavioral effects.
abstract: Naloxone produced improvement in abnormal thought content in medicated chronic schizophrenic patients, but not in drug-free patients. In contrast, drowsiness and increases in plasma prolactin concentrations were seen only in drug-free schizophrenic patients. Although growth hormone concentrations increased in drug-free and medicated schizophrenic patients, the time course was different in the two groups. Neuroleptics appear to alter naloxone's clinical and neuroendocrine effects in chronic schizophrenic patients.
mesh_terms: D000328:Adult; D014150:Antipsychotic Agents / Q000627:therapeutic use; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D013006:Growth Hormone / Q000097:blood*; D006801:Humans; D007263:Infusions, Parenteral; D008297:Male; D008875:Middle Aged; D009270:Naloxone / Q000627:therapeutic use*; D011388:Prolactin / Q000097:blood*; D011569:Psychiatric Status Rating Scales; D012559:Schizophrenia / Q000097:blood / Q000188:drug therapy*; D012565:Schizophrenic Psychology
chemical_list: D014150:Antipsychotic Agents; D009270:Naloxone; D011388:Prolactin; D013006:Growth Hormone