Fast Five Quiz: Tardive Dyskinesia Risk Factors

Christoph U. Correll, MD

Disclosures

February 22, 2021

TD is most common in patients with schizophrenia, schizoaffective disorder, or bipolar disorder who have been treated with antipsychotic medications for long periods. Occasionally, TD occurs in patients with other diagnoses as well. For example, TD can occur in people with fetal alcohol syndrome and other developmental disabilities.

TD is associated with long-term administration of antipsychotic medications, and these medications are less likely to be used to treat depression. Therefore, TD is not commonly associated with depression.

Parkinson's disease often presents with motor signs; however, these are different from the movements associated with TD. The initial finding of Parkinson's disease is an asymmetric resting tremor in the upper extremity. Over time, patients notice symptoms related to progressive bradykinesia, rigidity, and gait difficulty.

Learn more about the etiology of TD.

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