Maximum Strength Mucinex® Fast-Max Severe Congestion & Cough is a multi-Symptom relief medicine for your congestion & cough symptoms. Maximum Strength Mucinex® Fast-Max Severe Congestion & Cough helps relieve cough, thins and loosens mucus and relieves chest and nasal congestion. Mucinex® is the #1 Cough & Cold Brand Doctors Trust* and #1 Pharmacist Recommended Brand†. This product contains 6 Fluid Ounces. Use as directed, for Adults and Children 12 years of age and over. ACTIVE INGREDIENTS: Contains Dextromethorphan HBr - cough suppressant; Guaifenesin - expectorant; Phenylephrine HCI - nasal decongestant Take only as directed. *IQVIA using ProVoice Survey, August 2023. †U.S. News & World Report/Pharmacy Times 2023-2024.