Mucinex Maximum Strength Chest Congestion Medicine for Relief, Expectorant, Lasts 12 Hours, Extended-Release Bi-Layer Tablets, 42 Count (Pack of 3)

Last up to 12 hours; it provides powerful relief for your toughest chest congestion
Relieves chest congestion caused by excess mucus by making your cough more productive
A unique bi-layer tablet, one layer for immediate release, the other layer for extended release so the medicine starts to release right away and lasts for up to 12 hours
Ingredients: Guaifenesin (1200 mg) is an expectorant that helps reduce chest congestion caused by colds, infections or irritants
Contains Phenylephrine HCl that provides relief for nasal congestion, sinus congestion and pressure