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FDA approved Ingrezza (valbenazine) for the treatment of adults with tardive dyskinesia
Tardive dyskinesia is a neurological disorder associated with repetitive involuntary movements of the jaw, lips and tongue, such as grimacing, sticking out the tongue and smacking the lips. Some people may experience involuntary movement of the extremities or difficulty in breathing.
Tardive dyskinesia is a serious side effect sometimes observed in patients receiving long-term treatment with older antipsychotic medications for chronic condition such as schizophrenia and bipolar disorder and for depression and certain medications for gastrointestinal disorders and other conditions. Why some people taking these medications develop tardive dyskinesia is still unclear.
The efficacy of Ingrezza was established in a cl...