kirkland signature acetaminophen adult extra strength

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
kirkland signature acetaminophen adult extra strength
Generic name
ACETAMINOPHEN
Manufacturer
Costco Wholesale Company
Product type
HUMAN OTC DRUG
SPL set ID
a9979167-1a82-47d7-9602-2865f9bdd628
SPL ID
f4206f8b-9625-4b57-a298-5d765ce6f5d8
Version
11
Effective date
2025-09-27
Source export date
2026-11-06
Source partition
3
Source file
https://download.open.fda.gov/drug/label/drug-label-0003-of-0014.json.zip
Source object key
raw/openfda/drug-label/2026-11-06/97001096994db9ca8cee114e6c3bb5298d3c573158ffc1ab8692d82e76a3eb40/drug-label-0003-of-0014.json.zip
Source manifest SHA-256
4a7570ba105b5a039a8e1c94a85e7f085b9047a8882a35a96bf1e4516c5ffc97
Import run
20261108T063105Z
Imported at
2026-11-08 06:55:21
Harmonized routes table
Harmonized routes
ORAL

Warnings cross-check#

openFDA text is shown for search and cross-checking; DailyMed SPL is canonical.

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 4,000 mg of acetaminophen in 24 hours • with other drugs containing acetaminophen • 3 or more alcoholic drinks every day 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. 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 have ever had an allergic reaction to this product or any of its ingredients Ask a doctor before use if you have liver disease Ask a doctor or pharmacist before use if you are taking the blood thinning drug warfarin Stop use and ask a doctor if • pain gets worse or lasts more than 10 days • new symptoms occur • fever gets worse or lasts more than 3 days • redness or swelling is present 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: In case of overdose, get medical help or contact a Poison Control Center right away (1-800-222-1222). Quick medical attention is critical for adults as well as for children even if you do not notice any signs or symptoms.

Reported adverse events (FAERS/openFDA)#

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