Guaifenesin may be effective to treat fibromyalgia, but there is no scientific evidence to support it, as of 2015, according to About.com. Guaifenesin is available in several forms, including in cough medications such as Mucinex and Robitussin.
The Guaifenesin Protocol is a process from Dr. Paul St. Amand that many use to treat fibromyalgia, explains About.com. The theory is that the cells cannot make enough energy in those who have fibromyalgia, due to low levels of adenosine triphosphate, and this lack of energy may lead to the development of fibromyalgia symptoms. People with fibromyalgia often have too much phosphate in the body, which leads to the underproduction of adenosine triphosphate. When taking guaifenesin, Dr. St. Armand believes that it helps the kidneys process the phosphates, helping to improve fibromyalgia symptoms.
Though the use of guaifenesin has few side effects, excluding a possible upset stomach, there are some things a person must know if they attempt this fibromyalgia treatment, states About.com. The biggest caveat of using guaifenesin is that the user must avoid salicylates. These chemicals are in many products, including pain relievers, cosmetics, herbal medications, body care products and anything containing mint oil. Since these products are difficult to avoid, those who choose this course of treatment often spend a lot of time researching various products to use.