Mucinex 12-Hour Chest Congestion Expectorant Tablets, 100 Count

Mucinex breaks up the mucus that causes chest congestion while providing fast and long lasting relief. Mucinex is specially formulated in a bi-layer tablet. The immediate release layer goes to work fast while the extended release layer continues to work for 12 hours. And for your worst chest congestion symptoms, try Maximum Strength Mucinex.