single-ingredient, extended-release guaifenesin products

There's lots of confusion about single-ingredient, extended-release guaifenesin products...Mucinex, Humibid LA, and others.

These products contain high doses of guaifenesin...to help loosen mucus due to chronic bronchitis, asthma, COPD, etc.

Mucinex is now the only single-ingredient, extended-release guaifenesin on the market. It's available OTC.

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