What are the diagnostic criteria for tardive dyskinesia (TD)?

Updated: Oct 17, 2018
  • Author: James Robert Brasic, MD, MPH; Chief Editor: Selim R Benbadis, MD  more...
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Answer

Answer

Tardive dyskinesia (TD) is common in individuals with psychotic disorders (eg, schizophrenias, schizoaffective disorders, or bipolar disorders) who are treated with antipsychotic medications, especially dopamine antagonists, for many years. Generally, TD is diagnosed if 1 of the following circumstances is present:

  • A person who has taken neuroleptics for at least 3 months (1 month if older than 60 years) develops at least 2 movements of at least mild intensity while taking a neuroleptic

  • A person who has taken neuroleptics for at least 3 months (1 month if older than 60 years) develops at least 1 movement of at least moderate intensity while taking a neuroleptic

  • A person who has taken neuroleptics for at least 3 months (1 month if older than 60 years) develops at least 2 movements of at least mild intensity within 4 weeks of the discontinuance of the neuroleptic

  • A person who has taken neuroleptics for at least 3 months (1 month if older than 60 years) develops at least 1 movement of at least moderate intensity within 4 weeks of the discontinuance of the neuroleptic

  • A person who has taken neuroleptics for at least 3 months (1 month if older than 60 years) develops at least 2 movements of at least mild intensity within 8 weeks of the discontinuance of a depot neuroleptic

  • A person who has taken neuroleptics for at least 3 months (1 month if older than 60 years) develops at least 1 movement of at least moderate intensity within 8 weeks of the discontinuance of a depot neuroleptic


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