Tueth M J, Cheong J A
University of Florida Department of Psychiatry, University of Florida Hospitals, Gainesville.
J Geriatr Psychiatry Neurol. 1992 Oct-Dec;5(4):217-9. doi: 10.1177/002383099200500406.
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."