Robitussin and Mucinex are two over-the-counter remedies for chest congestion. The active ingredient in Robitussin is dextromethorphan, which helps to relieve coughs, while the active ingredient ...

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 ...

The viral "Mucinex Method” involves taking the over-the-counter decongestant to increase your fertility chances — but does it work? Getty (2) Social media users are claiming Mucinex helped ...

In addition to Mucinex, guaifenesin is also an active ingredient in other over-the-counter cough and cold medications. "The reason why people think that this is going to be a way that's going to ...

The viral "Mucinex Method” involves taking the over-the-counter decongestant to increase your fertility chances — but does it work? Cara Lynn Shultz is a writer-reporter at PEOPLE. Her work ...