Dextromethorphan is a generic over-the-counter (OTC) drug used to relieve cough. The drug comes as an oral suspension and an oral liquid capsule. How often you take it depends on the form you take.
Dextromethorphan is a generic, over-the-counter (OTC) drug used to help relieve cough. The medication is also available as the brand-name drug Delsym. Dextromethorphan belongs to the antitussive drug ...
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