Delsym (dextromethorphan) and Robitussin-DM (guaifenesin and dextromethorphan) are over-the-counter (OTC) medications used to ...

Learn more about Mucinex, a popular over-the-counter cough medication, including how it works, how long it lasts, and safety ...

(Worth noting: Some women use Mucinex DM, which contains guaifenesin, along with dextromethorphan HBr, an ingredient that decreases activity in the part of the brain that causes coughing.) ...

(Worth noting: Some women use Mucinex DM, which contains guaifenesin, along with dextromethorphan HBr, an ingredient that decreases activity in the part of the brain that causes coughing.) ...

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 ...