What does dm mean on mucinex?
DM stands for “Dextromethorphan” in Mucinex DM. Mucinex DM is a popular over-the-counter medication that is used to treat symptoms of cough and congestion. The medication contains two active ingredients: guaifenesin and dextromethorphan. Guaifenesin is an expectorant that works by thinning and loosening mucus in the airways, making it easier to cough up. Dextromethorphan is […]