Mucinex extended-release tablets break up the mucus that causes chest congestion providing you with fast-acting and long-lasting relief. With 12 hours of relief from chest congestion you can make it through a workday without congestion getting in your way. Only Mucinex has an extended release bi-layer tablet to deliver congestion relief. The first layer is absorbed quickly by your body for fast-acting relief. The other layer dissolves slowly to continue relieving your chest congestion for 12 hours.

Relieves Chest Congestion
Thins and loosens Mucus
500 Extended Release Bi-Layer Tablets
Starts to work right away and lasts for 12 hours
Extended-release bi-layer tablet
Mucinex is the #1 doctor recommended OTC expectorant among Internists General Practitioners and Family Practitioners.

Ingredients: Active Ingredients: in each extended-release tablet: Guaifenesin (600 mg) (Expectorant) Inactive Ingredients: Carbomer 934 FDandC Blue 1 (CI 42090) Hydroxypropyl Methylcellulose USP Magnesium Stearate NF Microcrystalline Cellulose NF Sodium Starch Glycolate NF