Tussin DM Max is a powerful cough suppressant and expectorant designed to help alleviate coughing and clear mucus. Formulated with active ingredients that target and soothe the throat while providing effective relief from congestion, it ensures a comfortable breathing experience. This product is ideal for those suffering from cold, flu, or allergy-related symptoms. Product Benefits. Powerful Cough Suppressant. Effective Expectorant. Soothes Throat Irritation. Alleviates Congestion.