Cited by 99Schizophrenia research and treatmentNeurotransmitter Receptor Influence on BehaviorPituitary Gland Disorders and Treatments

Differences in Prolactin Elevation and Related Symptoms of Atypical Antipsychotics in Schizophrenic Patients

Melkersson, Kristina·2005·The Journal of Clinical Psychiatry

Abstract

OBJECTIVE: The aim of this cross-sectional study was to investigate the degree and frequency of prolactin (PRL) elevation and related symptoms in patients treated with 3 different atypical antipsychotics: clozapine, olanzapine, and risperidone. METHOD: Twenty-eight patients receiving clozapine, 29 patients receiving olanzapine, and 18 patients receiving risperidone (all meeting DSM-IV criteria for schizophrenia, schizophreni-form disorder, or schizoaffective disorder) were studied. The median daily dose was 400 mg of clozapine, 10 mg of olanzapine, and 3 mg of risperidone. Fasting morning blood samples were analyzed for PRL, and the occurrence of hyper-prolactinemic symptoms in the patients was evaluated. RESULTS: Elevated PRL levels were found in 16 (89%) of the patients receiving risperidone and in 7 (24%) of the patients receiving olanzapine, but in none of the patients receiving clozapine. In addition, there was a significant difference in median PRL level among the treatment groups (p < .0001), in that the PRL level was higher both in the patients treated with risperidone and in the patients treated with olanzapine, compared to those treated with clozapine. Moreover, hyperpro-lactinemic symptoms-menstrual disturbances, galactorrhea, impotence, oligospermia, and decreased libido-were reported in 8 (44%) of the risperidone-treated patients and in 1 (3%) of the olanzapine-treated patients, but in none of the clozapine-treated patients. CONCLUSION: Treatment with risperidone was frequently associated with hyperprolactinemia and related symptoms, whereas the occurrence of PRL elevation and related symptoms was modest in patients receiving olanzapine and nonexistent in those receiving clozapine. Thus, atypical anti-psychotics in therapeutic doses differ with regard to effect on PRL secretion.

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Crossref · 10.4088/jcp.v66n0614

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Authors
Melkersson, K.
Affiliations
Karolinska Institutet (SE)
Corresponding author
Melkersson, Kristina
Venue
The Journal of Clinical Psychiatry
Published
2005-06-15
Volume
66
Issue
06
Pages
761-767
ISSN
0160-6689 (ISSN-L)
OpenAlex
W2041281069
Cited by
98
References
0
Citations by year
2024: 3 · 2023: 2 · 2022: 2 · 2021: 3 · 2020: 2 · 2019: 4 · 2018: 2 · 2016: 2 · 2015: 5 · 2014: 2 · 2013: 9 · 2012: 8
FWCI
5.80
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Clinical Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Pituitary Gland Disorders and Treatments
Keywords
prolactin elevation, hyperprolactinemia, atypical antipsychotics, schizophrenia, clozapine, olanzapine, risperidone, galactorrhea, menstrual irregularity, erectile dysfunction, oligozoospermia, low libido, adverse drug reactions
MeSH terms
Olanzapine, Adult, Ambulatory Care, Benzodiazepines, Clozapine, Cross-Sectional Studies, Female, Humans, Hyperprolactinemia, Male, Middle Aged, Prolactin, Schizophrenia, Antipsychotic Agents, Prevalence, Treatment Outcome, Risperidone

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