The best treatments for coughs and mucus may not be what you think.

Cough suppression and expectorant formulas by Robitussin generally contain the drugs Dextromethorphan and Guaifenesin.

Dextromethorphan is a cough suppressant. It affects the signals in the brain that trigger the cough reflex.  Guaifenesin is an expectorant. It helps loosen congestion in the chest and throat, making it easier to cough out. Read more…