Overview Dextromethorphan (DXM) is a widely used over-the-counter (OTC) medication for cough suppression. It is a key ingredient in many cough syrups and cold medications. While effective in managing coughs, DXM also has potential side effects and risks, especially when misused. This article provides an in-depth look at dextromethorphan, including its uses, benefits, dosage, side effects, and precautions. What is Dextromethorphan? Dextromethorphan is a cough suppressant belonging to the morphinan class of medications. It works on the brain’s cough center to reduce the urge to cough. Unlike opioid-based cough suppressants, DXM does not have strong pain-relieving effects or significant respiratory…