Guaifenesin, the only medicinal product in common use as an expectorant, is an ingredient in many cough medicines, such as Anti-Tuss, Dristan Cold & Cough, Guaifed, GuaiCough, and some Robitussin products.
Because the value of guaifenesin is uncertain, while the adverse effects have been documented, parents should consider using alternatives to guaifenesin-containing cough remedies for children.
Some products that contain guaifenesin are available only with a physician's prescription; others can be bought without a prescription.
There are two drugs that are routinely used to clear mucus from the respiratory tract: guaifenesin and acetylcysteine.
However, cough medicines that contain guaifenesin may contain other ingredients that do interact with foods or drugs.