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Mucinex Multi‑Action Congestion, Cold & Cough Solution 180 mL temporarily relieves nasal and chest congestion, cough, sore throat pain, sinus pressure, fever, minor aches and headaches by combining acetaminophen (650 mg), guaifenesin (400 mg), phenylephrine (10 mg), and dextromethorphan hydrobromide (20 mg). It loosens mucus for more productive coughing while reducing pain and swelling, making it a convenient single‑dose liquid for adults and children over 12. Use 20 mL every 6 hours (maximum four doses per day), with caution around liver warnings and if taking other acetaminophen products.