Take this medication by mouth with or without food, as directed by your doctor, usually every 4 hours. If you are self-treating, follow all directions on the product package. If you have any ...

Guaifenesin is used to treat coughs and congestion caused by the common cold, bronchitis, and other breathing illnesses. This product is usually not used for ongoing cough from smoking or long ...

Mucinex (guaifenesin) is a popular over-the-counter medication that relieves cough and congestion symptoms. Many people have questions about how long does Mucinex last. This information is ...