Reye's syndrome: Children and teenagers who have or are recovering from chicken pox of flu-like symptoms should not use this product. When using this product, if changes in behavior with nausea and vomiting occur, consult a doctor because these symptoms could be an early sign of Reye's syndrome, a rare but serious illness.
Allergy alert:  Aspirin may cause a severe allergic reaction which may include: hives, skin reddening, facial swelling, rash, asthma (wheezing), blisters, shock, If an allergic reaction occurs, stop use and seek medical help right away.
Stomach bleeding warning:  This contains an NSAID, which may cause severe stomach bleeding. The chance is higher if you:
are age 60 or older; have had stomach ulcers or bleeding problems; take a blood thinner (anticoagulant) or steroid drug; take other drugs containing prescription or nonprescription NSAIDs (aspirin, ibuprofen, naproxen, or others); have 3 or more alcoholic drinks every day while using this product; take more or for a longer time than directed