title: Cyproheptadine augmentation of haloperidol in chronic schizophrenic patients: a double-blind placebo-controlled study.
abstract: A 6 week double-blind placebo-controlled trial of cyproheptadine augmentation of ongoing haloperidol treatment was conducted in 40 chronic schizophrenic in-patients. Cyproheptadine augmentation, compared to administration of haloperidol with placebo, did not produce a statistically significant improvement in psychotic symptoms. Cyproheptadine augmentation caused significant reduction in the extrapyramidal symptoms, which supports the atypical profile of antipsychotics. As to the neuroendocrinological effect, cyproheptadine augmentation did not reduce the plasma prolactin level but did induce a decrease in the plasma cortisol level. Although long-term follow-up studies are needed to confirm the results, this study suggests that cyproheptadine augmentation may be effective in treating chronic schizophrenic patients who are intolerant of extrapyramidal side effects of conventional antipsychotics.
authors.affiliation: Department of Psychiatry, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: H S
authors.initials: HS
authors.lastname: Lee
authors.forename: D H
authors.initials: DH
authors.lastname: Song
authors.forename: J H
authors.initials: JH
authors.lastname: Kim
authors.forename: Y M
authors.initials: YM
authors.lastname: Lee
authors.forename: E S
authors.initials: ES
authors.lastname: Han
authors.forename: K J
authors.initials: KJ
authors.lastname: Yoo
mesh_terms: D000328:Adult; D002908:Chronic Disease; D003533:Cyproheptadine / Q000627:therapeutic use*; D004311:Double-Blind Method; D004359:Drug Therapy, Combination; D005260:Female; D005500:Follow-Up Studies; D006220:Haloperidol / Q000627:therapeutic use*; D006801:Humans; D006854:Hydrocortisone / Q000097:blood; D008297:Male; D010919:Placebos; D011388:Prolactin / Q000097:blood; D012559:Schizophrenia / Q000097:blood / Q000188:drug therapy*; D013997:Time Factors
chemical_list: D010919:Placebos; D003533:Cyproheptadine; D011388:Prolactin; D006220:Haloperidol; D006854:Hydrocortisone