Cited by 105Schizophrenia research and treatmentNeurotransmitter Receptor Influence on BehaviorTreatment of Major Depression

Cholinergic rebound and rapid onset psychosis following abrupt clozapine withdrawal

Shiovitz, T. M., Welke, T. L., Tigel, P. D., Anand, R., Hartman, R. D., Sramek, J. J., Kurtz, N. M., Cutler, N. R.·1996·Schizophrenia Bulletin

Abstract

Following the conduct of a 28-day inpatient bioequivalence study of clozapine in schizophrenia patients, withdrawal effects after abrupt discontinuation from clozapine were assessed. Thirty patients who met DSM-III-R criteria for schizophrenia, residual type, or schizophrenia in remission were enrolled in the study. Patients were evaluated for symptoms of withdrawal effects for 7 days after clozapine 200 mg/day was abruptly withdrawn. Of 28 patients who completed the study, 11 had no withdrawal symptoms; 12 had mild withdrawal adverse events of agitation, headache, or nausea; four patients experienced moderate withdrawal adverse events of nausea, vomiting, or diarrhea; and one patient experienced a rapid-onset psychotic episode requiring hospitalization. Cholinergic rebound is a likely explanation for the mild to moderate withdrawal symptoms and is easily treated with an anticholinergic agent. Mesolimbic supersensitivity, as well as specific properties of clozapine, are discussed as likely causes for rapidonset psychosis. Our findings are consistent with previous reports of withdrawal reactions associated with clozapine, further reminding clinicians to monitor patients closely following abrupt discontinuation of clozapine.

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Crossref · 10.1093/schbul/22.4.591

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2 of 2 references verified0 citation errors · 0 not checkable

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Authors
Shiovitz, T. M., Welke, T. L., Tigel, P. D., Anand, R., Hartman, R. D., Sramek, J. J., Kurtz, N. M., & Cutler, N. R.
Affiliations
  • Clinical Trials of Texas (US)
  • Worldwide Clinical Trials (United States) (US)
Corresponding author
  • Shiovitz, T. M.
  • Cutler, N. R.
Venue
Schizophrenia Bulletin
Published
1996-01-01
Volume
22
Issue
4
Pages
591-595
ISSN
  • 0586-7614 (ISSN-L)
  • 1745-1701
OpenAlex
W2137941062
Cited by
104
References
2
Citations by year
2026: 3 · 2025: 4 · 2024: 3 · 2023: 5 · 2022: 2 · 2021: 7 · 2020: 3 · 2019: 8 · 2018: 2 · 2017: 4 · 2016: 1 · 2015: 4 · 2013: 5 · 2012: 2
FWCI
2.84
Type
journal article
Language
en
Open access
closed
Locations
  • Schizophrenia Bulletin (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 › Pharmacology › Treatment of Major Depression
Keywords
clozapine, drug withdrawal
MeSH terms
Adolescent, Adult, Clozapine, Diarrhea, Dose-Response Relationship, Drug, Female, Humans, Male, Middle Aged, Nausea, Neurologic Examination, Psychoses, Substance-Induced, Receptors, Cholinergic, Schizophrenia, Schizophrenic Psychology, Substance Withdrawal Syndrome, Antipsychotic Agents, Vomiting, Akathisia, Drug-Induced

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