Mucinex (guaifenesin) is an expectorant. It helps loosen congestion in your chest and throat, making it easier to cough out through your mouth. Mucinex is used to reduce chest congestion caused by the common cold, infections, or allergies. (Please consult your physician before taking any medication)
this medication by mouth with or without food, as directed by your doctor, usually every 12 hours with a full glass of water. If you are self-treating, follow all directions on the product package. If you have any questions, ask your doctor or pharmacist.