This drug helps loosen congestion in your chest and throat. We are a well-established firm that has made its presence in the industry, by offering Guaifenesin. This drug is used to treat coughs and congestion caused by the common cold, bronchitis, and other breathing illnesses. This product is usually not used for ongoing cough from smoking or long-term breathing problems unless directed by doctor. It works by thinning and loosening mucus in the airways, clearing congestion, and making breathing easier. Guaifenesin comes as a tablet, a capsule, an extended-release tablet, dissolving granules, and a syrup (liquid) to take by mouth.