How is tardive dyskinesia differentiated from hemifacial spasm?

Updated: Sep 16, 2019
  • Author: Steven Gulevich, MD; Chief Editor: Nicholas Lorenzo, MD, MHA, CPE  more...
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Tardive dyskinesia appears as bilateral, irregular, and non-synkinetic muscular contractions. It occurs in the setting of medication use, usually antipsychotics.  

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