Tetrabenazine and movement disorders

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Abstract
Based on a blind review of videotape recordings, the ability of tetrabenazine to suppress abnormal movements was analyzed. The recordings were done before treatment, after 3 wk on a stable dose (up to 200 mg daily) of tetrabenazine, and then after 3 wk on placebo. Among the patients who completed the trial, improvement occurred in 6 of 8 with Huntington disease, 6 of 10 with tardive dyskinesia and 3 of 8 with dystonic disorders. The drug was usually tolerated well.

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