Mucinex Maximum Strength 12-Hour Chest Congestion Expectorant Tablets (126 Count) Click below to buy on Amazon: http://www.amazon.com/gp/product/B00TOZ9FNK?tag=sukses2015-20 Relieves chest congestion Thins and loosens mucus that causes chest congestion 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