Dextromethorphan (DXM or DM) is an antitussive (cough suppressant) drug. It is one of the active ingredients in many over-the-counter cold and cough medicines including generic labels and store brands Benylin DM Mucinex DM Robitussin NyQuil Dimetapp Vicks Coricidin Delsym TheraFlu and others. Dextromethorphan has also found other uses in medicine ranging from pain relief to psychological applications. It is sold in syrup tablet spray and lozenge forms.
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