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. Allergy Alert: Aspirin may cause a severe allergic reaction which may include facial swelling; asthma (wheezing); shock; hives. Stomach Bleeding Warning: This product contains a nonsteroidal anti-inflammatory drug (NSAID), which may cause stomach bleeding. The chance is higher if you have 3 or more alcoholic drinks every day while using this product; are age 60 or older; have had stomach ulcers or bleeding problems; take blood thinning (anticoagulant) or steroid drug; take other drugs containing and NSAID [aspirin, ibuprofen, naproxen, or others]; take more or for a longer time than directed. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a poison control center right away. Tamper Evident Feature: Do not use if safety overwrap or S tear-tape is missing or torn.