"Mucinex Fast-Max Adult Severe Congestion and Cough Liquid helps relieve severe congestion and cough symptoms with a liquid that combines the mucus busting power of Mucinex and maximum strength medicines*. It's a whole new day for relief in a brand new caplet from Mucinex. Mucinex Fast-Max Adult Severe Congestion and Cough Liquid contains Dextromethorphan HBr cough suppressant, Guaifenesin expectorant, and Phenylephrine HCl nasal decongestant. Use to control cough, relieve nasal & chest congestion, and thin & loosen mucus. *Per 4 hour dose. Mucinex Fast-Max Adult Night Time Cold and Flu Liquid relieve your worst cold symptoms with mucus-busting power and maximum-strength medicines*. And by night, Mucinex Fast-Max Night Time relieves your worst symptoms to help you get to sleep. Mucinex Fast-Max Adult Night time Cold and Flu Liquid contains Acetaminophen pain reliever and fever reducer. Diphenhydramine HCl cough suppressant and antihistamine, phenylephrine HCl nasal decongestant."