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 ...

This combination medication is used to temporarily treat cough, stuffy nose, body aches, and other symptoms (such as fever, headache, sore throat) caused by the common cold, flu, or other ...

Overall, pseudoephedrine works better than oral phenylephrine for nasal congestion (stuffy nose ... Sudafed and other products that contain pseudoephedrine (such as Zyrtec-D, Mucinex-D, and others).