Reye’s syndrome: Children and teenagers who have or are recovering from chicken pox or 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. Stomach bleeding warning: This product 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 thinning (anticoagulant) or steroid drug. Take other drugs containing prescription or nonprescription NSAIDs (aspirin, ibuprofen, naproxen, or others). Take more or for a longer time than directed. Have 3 or more alcoholic drinks every day while using this product. Do not use : If you are allergic to aspirin or any other pain reliever/fever reducer. If you have ever had an allergic reaction to this product or any of its ingredients. Tamper evident: Do not use if imprinted safety seal under cap is broken or missing.