A case of Capgras syndrome in a 67-year-old man who failed to improve on haloperidol, but responded to pimozide, is described. The patient's paranoid delusions abated with 8 mg per day of pimozide. We believe pimozide's established benefit in the treatment of delusional disorders warrants its consideration in alleviating other delusions, including “the delusion of doubles.” (J Geriatr Psychiatry Neurol 1992;5:217–219).
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