Dextromethorphan Hydrobromide is a commonly used cough suppressant that acts on the brain's cough center to reduce the urge to cough. It is a non-opioid derivative of morphine but lacks addictive properties when used correctly. Often found in over-the-counter cold and flu medications, it provides symptomatic relief from dry, irritating, or non-productive coughs without causing significant drowsiness in most individuals.