According to the Mayo Clinic, guaifenesin is used to help coughs, clear mucus and relieve congestion in the chest due to a cold or similar illness. This medicine works by thinning mucus or phlegm. Guiafenesin is available over the counter under several brand names, including the popular Mucinex, Robitussin and other brands. Some forms of guaifenesin preparations are only available by prescription, however. These medications are taken orally in various preparations including liquids, tablets, capsules, elixirs and packets.
Safety
Mucinex expectorant is a safe alternative to medicines that contain pseudoephedrine, which can cause heart problems and may not be appropriate for those with heart conditions. The medication, however, is not recommended for babies or small children, as serious or life threatening effects could occur, according to the Mayo Clinic.
Recovery
Guaifenesin works by thinning the mucus that causes congestion, and lubricating the lungs, making it easier to cough up the fluids that can build in the lungs. Getting rid of these fluids may ease congestion and help sufferers both feel better and recover more quickly from colds and infections.
Side Effects
According to the Mayo Clinic, when taking Mucinex expectorant, some side effects may occur that usually do not need medical attention. Typically, as your body adjusts to the medications, the side effects may go away. It is recommended that you consult a health care professional if the following side effects do not go away and become bothersome: dizziness, diarrhea, nausea, headaches, hives, skin rashes, stomach pain and vomiting.
Use
Mucinex Expectorant is formulated for those with seasonal illnesses, or acute infections. According to The University of Maryland Medical Center, guaifenesin (Mucinex Expectorant) should not be used by those with chronic coughs related to smoking, or by those with asthmatic coughs, chronic bronchitis, emphysema or cough that are accompanied by excessive secretions.


