Mucinex dm what's the difference? Webdec 6, 2023 · mucinex d and mucinex dm both contain the expectorant guaifenesin (which is contained as a single ingredient in mucinex). Soo doe e fed rin) is a decongestant, expectorant combination.

Webwhat is the difference between mucinex dm and just mucinex®? Mucinex dm and mucinex (without the dm) both contain guaifenesin, an expectorant that thins your mucus. It has two active ingredients: It is used to provide. Guaifenesin is an expectorant that helps.

Guaifenesin is an expectorant that helps.