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A condition affecting the nervous system, often caused by long-term use of some psychiatric drugs.

Tardive dyskinesia is caused by long-term use of neuroleptic drugs, which are used to treat psychiatric conditions.

Tardive dyskinesia causes repetitive, involuntary movements, such as grimacing and eye blinking.

Stopping or tapering drugs that may be contributing to involuntary repetitive movements can help. In rare cases, botulinum toxin, deep brain stimulation, or medications can help.