Mucinex DM Maximum Strength 12-Hour Expectorant and Cough Suppressant Tablets has a bi-layer tablet with maximum-strength medicines that fights coughs caused by mucus for up to 12 hours. The extended-release bi-layer tablet is designed with two layers. The first layer is absorbed quickly by your body for fast relief. The other layer dissolves slowly to continue relieving your coughs for 12 hours. Mucinex DM Max Strength contains 1200 mg Guaifenesin & 60 mg dextromethorphan HBr.

• Clinically proven to last up to 12 hours; it provides powerful relief for your toughest chest congestion.
• Quiets wet and dry cough, relieves chest congestion caused by excess mucus by making your cough more productive.
• A unique bi-layer tablet, one layer for immediate release, the other layer for extended release so the medicine starts to release right away and lasts for up to 12 hours.
• Guaifenesin (1200 mg) is an expectorant that helps reduce chest congestion caused by colds, infections or irritants and Dextromethorphan HBr (60 mg) a cough suppressant that works by suppressing the cough center of the brain.
• 1 tablet every 12 hours.