What is Dextromethorphan or DXM?

Dextromethorphan (DXM) is the active ingredient found in many over-the-counter cough and cold medicines including syrups, tablets, and gel caps. When taken as directed, products containing DXM produce few side effects and have a long history of safety. But when abused in large amounts, these products can cause dissociative hallucinations as well as a number […]