A Case Report of Methylphenidate-Induced Dyskinesia

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Sir: Movement disorders have long been associated with a wide variety of medications and illicit drugs. Dopaminergic agents are well-known precipitants of various dyskinesias, including chorea, choreoathetosis, dystonia, and ballism. For example, levodopa-induced dyskinesias are a relatively common side effect of the treatment of Parkinson’s disease, with up to 45% of patients affected after 5 years of such treatment.1

Primary Care Companion J Clin Psychiatry 2002;4(4):158-159 [letter]