🚀 Conquer Congestion with Confidence! The #1 cold and cough brand recommended by professionals. Immediate and extended release for maximum effectiveness. Say goodbye to frequent dosing and hello to all-day relief. Thins and loosens mucus for a more productive cough. Experience 12 hours of uninterrupted relief! 12-hour relief Bi-layer tablet #1 trusted brand Mucinex 12 Hour Chest Congestion Medicine offers powerful relief from chest congestion with its unique bi-layer tablet design, providing immediate and extended action for up to 12 hours. Trusted by doctors and pharmacists alike, this expectorant contains Guaifenesin to help thin and loosen mucus, making coughs more productive. With a value size of 68 tablets in a pack of 2, it's the go-to solution for effective symptom relief.