Question: what is the difference between regular mucinex and mucinex dm?
Answer: Mucinex Dm (Dextromethorphan / Guaifenesin) is okay for loosening congestion in your chest and throat, but it could prevent you from coughing the mucus up. It comes as an extended-release tablet and a short-acting liquid. Mucinex (Guaifenesin) reduces the thickness and amount of mucus in your throat and chest.