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Drugs Today (Barc). 2003 Jul;39(7):551-7.

Antipsychotic medication and seizures: a review.

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  • 1Department of Psychology and the Neuroscience Center, Brigham Young University, Provo, Utah 84602, USA. dawson_hedges@byu.edu

Abstract

Both first-generation and second-generation antipsychotic medications can lower the seizure threshold, increasing the chances of seizure induction. This article reviews the published literature concerning the seizure-lowering effects of first- and second-generation antipsychotic medication. Unfortunately, rigorously controlled studies are relatively infrequent, and case reports form a large part of the available literature, limiting the confidence with which firm conclusions can be drawn. Of the first-generation antipsychotic medications, chlorpromazine appears to be associated with the greatest risk of seizure provocation, although other first-generation antipsychotics also lower seizure threshold. Conversely, molindone, haloperidol, fluphenazine, pimozide and trifluoperazine are associated with a lower risk of seizure induction. Clozapine is the second-generation antipsychotic most frequently associated with seizures, with risperidone appearing to confer a relatively low risk. Other factors such as history of seizure activity, concurrent use of other drugs that lower seizure threshold, rapid dose titration, slow drug metabolism, metabolic factors and drug-drug interactions appear to increase the chances of an antipsychotic medication inducing seizure activity.

Copyright 2003 Prous Science. All rights reserved.

PMID:
12973403
[PubMed - indexed for MEDLINE]
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