The active ingredient in Robitussin and Mucinex DM products, dextromethorphan, is an antitussive, or cough suppressant. It stops your urge to cough and helps reduce coughing caused by slight ...

“Similar expectorants would not be advised due to most containing other ingredients such as dextromethorphan [like Mucinex DM] or pseudoephedrine [like Mucinex D], which cause a drying effect ...

An ingredient in Mucinex, Guaifenesin, is thought to be at the center of the theory. As the Mayo Clinic explains, “Guaifenesin is used to help clear mucus or phlegm from the chest when you have ...

An ingredient in Mucinex, Guaifenesin, is thought to be at the center of the theory. As the Mayo Clinic explains, “Guaifenesin is used to help clear mucus or phlegm from the chest when you have ...

Mucinex contains an active ingredient, guaifenesin, that helps with congestion by thinning phlegm, a type of mucus produced by the respiratory system.

For some women, using Mucinex, the cough medicine, to address and clear up mucus or flem, as Guaifenesin is an active ingredient (that alleviates congestion by thinning phlegm, a type of mucus ...