Guaifenesin

Guaifenesin (INN) or guaiphenesin (former BAN) is an expectorant drug usually taken orally to assist the expectoration ("bringing up") of phlegm from the airways in acute respiratory tract infections. It is sold under several brand names such as Humibid, Mucinex, Benylin and Robitussin, and it also is included in many over-the-counter cough and cold remedies.

Guaifenesin's molecular formula is C₁₀H₁₄O₄. It was first approved by the FDA in 1952.

Guaifenesin is also used in the experimental guaifenesin protocol in the treatment of fibromyalgia.

External links

• Information from Medline Plus
• Information from MedicineNet.com