Maximum Strength Mucinex Fast-Max Cold and Flu

openFDA label record#

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Verified complete openFDA source JSON (canonical bytes are SHA-256 checked before publication)

Brand name
Maximum Strength Mucinex Fast-Max Cold and Flu
Generic name
ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, PHENYLEPHRINE HYDROCHLORIDE
Manufacturer
Reckitt Benckiser LLC
Product type
HUMAN OTC DRUG
SPL set ID
182222b5-a852-4dbe-b05f-a41d89806021
SPL ID
51a46827-4e7d-7b1e-e063-6394a90a48c2
Version
8
Effective date
2026-05-12
Source export date
2026-08-08
Source partition
7
Source file
https://download.open.fda.gov/drug/label/drug-label-0007-of-0014.json.zip
Source object key
raw/openfda/drug-label/2026-08-08/557e0d975e6287740870aa17bb056cb4e69d26ee6763db2a1833c2a65a8930f3/drug-label-0007-of-0014.json.zip
Source manifest SHA-256
b39f3b00ad50d2e1b32aaf429248c6081e8799b35bce715b4fccb8cfa1ac4546
Import run
20260810T161303Z
Imported at
2026-08-10 17:10:19
Harmonized routes table
Harmonized routes
ORAL

Warnings cross-check#

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Warnings sections page 1 of 1 · 1 matching rows.

warnings

Warnings Liver warning This product contains acetaminophen. Severe liver damage may occur if you take: more than 6 doses in 24 hours, which is the maximum daily amount 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. if you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric, or emotional conditions, or Parkinson's disease), or for 2 weeks after stopping the MAOI drug. If you do not know if your prescription drug contains an MAOI, ask a doctor or pharmacist before taking this product. Ask a doctor before use if you have liver disease heart disease diabetes high blood pressure thyroid disease trouble urinating due to an enlarged prostate gland 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 nervousness, dizziness, or sleeplessness occur pain, nasal congestion, 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 fever, rash, or headache that lasts. These could be signs of a serious condition. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. Overdose warning Taking more than the recommended dose (overdose) may cause liver damage. In case of overdose, get medical help or contact a Poison Control Center right away. Quick medical attention is critical for adults as well as for children even if you do not notice any signs or symptoms.