Dextromethorphan (DXM or DM) is an antitussive (cough-suppressant) drug found in many over-the-counter cold and cough medicines. Dextromethorphan has also found other uses in medicine, ranging from pain relief to psychological applications. Pure dextromethorphan occurs as a powder made up of white crystals, but it is generally administered via syrups, tablets, or lozenges manufactured under several different brand names and generic labels.
When taken at doses higher than are medically recommended, dextromethorphan acts as a dissociative hallucinogen. It produces effects similar to those of the controlled substances LSD, which affords it a high potential for abuse.
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