Mucinex Fast-Max Cold, Flu and Sore Throat

openFDA label record#

This page contains supplementary openFDA label data. For the canonical label presentation, use the corresponding DailyMed Structured Product Label.

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

Brand name
Mucinex Fast-Max Cold, Flu and Sore Throat
Generic name
ACETAMINOPHEN, GUAIFENESIN
Manufacturer
Reckitt Benckiser LLC
Product type
HUMAN OTC DRUG
SPL set ID
50b140ad-aba2-ce6b-e063-6294a90ae2f8
SPL ID
5242a71b-83b2-5e9f-e063-6394a90a5b4d
Version
2
Effective date
2026-05-20
Source export date
2026-11-06
Source partition
12
Source file
https://download.open.fda.gov/drug/label/drug-label-0012-of-0014.json.zip
Source object key
raw/openfda/drug-label/2026-11-06/39f3c0903357a80632a5484c9d6a804272f4b297080aa9c5a01a84db133f7a03/drug-label-0012-of-0014.json.zip
Source manifest SHA-256
4a7570ba105b5a039a8e1c94a85e7f085b9047a8882a35a96bf1e4516c5ffc97
Import run
20261108T063105Z
Imported at
2026-11-08 08:02:39
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 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

Reported adverse events (FAERS/openFDA)#

Adverse event summaries are temporarily unavailable. Other product information remains available.