Warnings: Reye's syndrome warning: Children and teenagers who have or are recovering from chickenpox 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: Contains salicylate. Stomach bleeding: 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 blood thinning (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. Do not use: if you are allergic to salicylates (including aspirin); taking other salicylate products. Ask a doctor before use if: stomach bleeding warning applies to you; you have a history of stomach problems, such as heartburn; you have high blood pressure, heart disease, liver cirrhosis, or kidney disease; you are taking a diuretic; you have asthma. Ask a doctor or pharmacist before use if you are taking a prescription drug for: anticoagulation (thinning of the blood); diabetes; gout; arthritis. When using this product: limit use of caffeine containing drugs, foods, or drinks, because too much caffeine may cause nervousness, irritability, sleeplessness, and occasional rapid heartbeat. Stop use and ask a doctor if: an allergic reaction occurs (seek medical help right away); ringing in the ears or loss of hearing occurs; pain gets worse or lasts more than 10 days; fever lasts more than 3 days; redness or swelling is present; new symptoms occur; you experience any of the following signs of stomach bleeding: feel faint, vomit blood, have bloody or black stools, have stomach pain that does not get better. Pregnancy/breast-feeding warning: 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. Other warnings: Do not use if seal under shrink is broken.