Mucinex Fast-Max Cold, Flu and Sore Throat
Generic name: acetaminophen, guaifenesin · Brand names: Mucinex Fast-Max Cold, Flu And Sore Throat
Expectorant [epc]Information sourced from FDA Structured Product Labeling, updated May 20, 2026.
What is it used for?
Uses ■ temporarily relieves these common cold and flu symptoms: ■ minor aches and pains ■ headache ■ sore throat ■ helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive ■ temporarily reduces fever
How to take it
Directions do not take more than directed do not take more than 12 caplets in any 24-hour period adults and children 12 years of age and older: take 2 caplets every 4 hours children under 12 years of age: do not use
Warnings
Warnings Liver warning: This product contains acetaminophen. Severe liver damage may occur if you take: ■ more than 12 caplets in 24 hours, which is the maximum daily amount for this product ■ with other drugs containing acetaminophen ■ 3 or more alcoholic drinks daily while using this product Allergy alert : Acetaminophen may cause severe skin reactions. Symptoms may include: ■ skin reddening ■ blisters ■ rash If a skin reaction occurs, stop use and seek medical help right away.
Sore throat warning: If sore throat is severe, persists for more than 2 days, is accompanied or followed by fever, headache, rash, nausea, or vomiting, consult a doctor promptly. Do not use ■ with any other drug containing acetaminophen (prescription or nonprescription). If you are not sure whether a drug contains acetaminophen, ask a doctor or pharmacist.
Ask a doctor before use if you have ■ liver disease ■ persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema ■ cough that occurs with too much phlegm (mucus) Ask a doctor or pharmacist before use if you are taking the blood thinning drug warfarin When using this product do not use more than directed Stop use and ask a doctor if ■ pain or cough gets worse or lasts more than 7 days ■ fever gets worse or lasts more than 3 days ■ redness or swelling is present ■ new symptoms occur ■ cough comes back or occurs with rash or headache that lasts. These could be signs of a serious condition
All information on this site is provided “as-is” for informational purposes only and is not a substitute for medical advice or treatment. You should consult with a medical professional if you have any questions about your health. Source: FDA Structured Product Labeling.