Cold and Cough Relief Caplets, 400 mg Strength, Bottle of 100 Product Features: Guaifenesin Tablets (400 mg). Guaifenesin is used to treat coughs and congestion caused by the common cold, bronchitis, and other breathing illnesses. Guaifenesin is an expectorant. Alcohol Free. Non-drowsy. Thins and loosens mucus.
