Compare to the active ingredients of Robitussin Maximum Strength Cough Plus Chest Congestion DM. Get maximum strength mucus relief with Equate Tussin DM Max, Cough and Chest Congestion, Raspberry Menthol Flavor. This liquid cough medicine relieves chest congestion, controls cough, and thins and loosens mucus. Each 20 mL dose provides non-drowsy, daytime relief from cough and mucus so you can feel like yourself again. Take every four hours to loosen and relieve chest congestion. The cough suppressant (dextromethorphan HBr) and expectorant (guaifenesin) provide powerful cough and congestion relief. Peak cold season calls for a maximum strength daytime cough syrup. For adults and children ages 12 and over. Gluten and alcohol free. Dosage cup included. Maximum strength claim based on maximum daily dose of active ingredients.