J Korean Neuropsychiatr Assoc.  2001 Mar;40(2):356-370.

Two Cases of Risperidone-Induced Tardive Dystonia

Affiliations
  • 1Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul.

Abstract

It has been reported that risperidone, an atypical antipsychotic drug, is less likely to induce neurologic side effects than conventional antipsychotics. However, long-term administration of risperidone has been reported to produce severe irreversible neurologic side effects, such as tardive dyskinesia. Tardive dystonia has been suggested as a distinct movement disorder different from tardive dyskinesia and a few cases of risperidone-induced tardive dystonia were reported recently. We experienced two cases of tardive dystonia, which developed in association with the long-term administration of risperidone, and the symptoms of tardive dystonia were slightly subsided after discontinuation of risperidone. It is necessary to be cautious of dystonic symptoms during long-term administration of risperidone.

Keyword

Risperidone; Tardive dystonia

MeSH Terms

Antipsychotic Agents
Movement Disorders*
Risperidone
Antipsychotic Agents
Risperidone
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