Mucinex 12 Hour Extended Release Tablets -Guaifenesin Relieves Chest Congestion Caused by Excess Mucus (#1 Doctor Recommended OTC expectorant), 100 Count (Pack of 1)

Mucinex Extended-release Bi-layer tablets provide powerful symptom relief. The product relieves chest congestion, thins and loosens mucus and lasts for 12 hours. It contains a unique bi-layer tablet - one layer for immediate release and one layer for extended release, so the medicine starts to release right away and lasts for up to 12 hours, so you can say goodbye to retaking medicine every 4 hours. Mucinex is the #1 Cough & Cold Brand Doctors Trust* and the #1 Pharmacist Recommended Brand† as well.