Mucinex DM Maximum Strength 12-Hour Expectorant and Cough Suppressant Tablets have a bi-layer tablet with maximum-strength medicines that fight wet and dry coughs for up to 12 hours. The extended-release bi-layer tablet releases immediately and lasts for 12 hours. Nothing lasts longer.

• CONTINUOUS RELIEF: Maximum strength Mucinex DM lasts up to 12 hours so you can say goodbye to retaking medicine every 4 hours
• MUCINEX DM MAXIMUM STRENGTH EXTENDED-RELEASE BI-LAYER TABLETS: Clinically proven to last up to 12 hours; it provides powerful relief for your toughest chest congestion
• SYMPTOMS TREATED: Quiets wet and dry cough, relieves chest congestion caused by excess mucus by making your cough more productive
• ONE EASY PILL: 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
• INGREDIENTS: 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