Major Robafen DM Cough & Chest Congestion Raspberry Flavor Cough Syrup is an affordable alternative to Robitussin Cough + Chest Congestion DM and temporarily relieves cough and chest congestion due to the common cold, bronchitis, or allergies. It contains dextromethorphan, which suppresses the cough reflex, and guaifenesin, which helps loosen mucus and make it easier to cough up. It is raspberry flavored and non-drowsy.