Dextromethorphan for tardive dyskinesia.

Aims: To report three cases of successful treatment of tardive dyskinesia (TD) with dextromethorphan. Study Design: Retrospective chart review. Place and Duration of Study: Private outpatient practice in Syracuse, NY. Methodology: A retrospective chart review of patients with TD who were treated with dextromethorphan between 2003 and 2013 was conducted. Results: Three consecutive patients experienced marked improvement of TD with dextromethorphan. Conclusion: Dextromethorphan may be a useful drug for treating TD. Further prospective studies are needed.