Mucinex DM maximum-strength, 12-hour expectorant and cough suppressant tablets have a bi-layer tablet with maximum strength medicines that fight coughs caused by mucus for up to 12 hours
1,200 milligrams of guaifenesin and 60 milligrams of dextromethorphan HBr per tablet
There are 14 cough-controlling and mucus-loosening tablets in a box
