Are you searching for reliable chest congestion relief for adults? Look no further than Maximum Strength Mucinex 12 Hour Expectorant for excess mucus relief, a cold medicine adults count on. Featuring a robust 1200mg of guaifenesin, this expectorant thins and loosens mucus thereby making coughs more productive. Our original bi-layer tablet provides immediate and extended- release and lasts up to 12 hours. When the cold and flu season hits, trust Mucinex 12hr for powerful chest congestion relief. Use as directed, for Adults and Children 12 years of age and over.