So, they’re both expectorants, or.

It has two active ingredients:

Guaifenesin is an expectorant that helps.

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Webboth mucinex d and mucinex dm contain the active ingredient guaifenesin, which is an expectorant that helps loosen and thin mucus in the airways, making it easier to cough.

Webdec 6, 2023 · mucinex d and mucinex dm both contain the expectorant guaifenesin (which is contained as a single ingredient in mucinex).

Mucinex d and mucinex dm both contain guaifenesin as an active ingredient.

It has two active ingredients:

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