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Dextromethorphan to Treat Patients With Voice Spasms

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00055549
Recruitment Status : Completed
First Posted : March 5, 2003
Last Update Posted : July 2, 2017
Information provided by:
National Institutes of Health Clinical Center (CC)