Dyskinesia refers to involuntary movements, similar to a tic or chorea. When it occurs after treatment with certain drugs, such as antipsychotics, it is called tardive dyskinesia. Dyskinesia seen in Parkinson’s disease is usually a side effect of dopaminergic drugs at higher doses.

Symptom severities
Severe
8
Moderate
28
Mild
37
None
9
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