Journal
CLINICAL NEUROPHARMACOLOGY
Volume 28, Issue 4, Pages 195-196Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/01.wnf.0000174933.89758.c9
Keywords
antipsychotic treatment; tardive dystonia; quetiapine
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The authors report 2 patients with schizophrenia who developed focal tardive dystonia secondary to treatment with atypical antipsychotics (risperidone, olanzapine). When quetiapine was gradually introduced and other antipsychotics were discontinued, these patients experienced remarkable and sustained improvement of their dystonic symptoms, without loss of psychotic symptom control. The mechanism by which quetiapine may improve tardive dystonia caused by other atypical antipsychotics is unclear. Due to its receptor and pharmacologic profile, quetiapine is the atypical antipsychotic that is most similar to clozapine (without its hematologic side effects), which leads the authors to consider it for the treatment of tardive movement disorders.
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