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: hives facial swelling shock asthma (wheezing). 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. Living warning: This product contains acetaminophen. Severe liver damage may occur if you take more than 4 powders in 24 hours, which is the maximum daily amount with other drugs containing acetaminophen 3 or more alcoholic drinks every day while using this product 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 non-prescription 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 Caffeine warning: This product contains caffeine. Limit the use of caffeine-containing medications, foods, or beverages because too much caffeine may cause nervousness, irritability, sleeplessness and, occasionally, rapid heart beat. Do not use if you have ever had an allergic reaction to aspirin or any other pain reliever/fever reducer with any other drug containing acetaminophen (prescription or nonprescription). If you are not sure whether a drug contains acetaminophen, ask a doctor or pharmacist. Ask a doctor before use if you have liver disease stomach bleeding warning applies to you you have a history of stomach problems, such as heartburn s you have high blood pressure, heart disease, liver cirrhosis, or kidney disease s you are taking a diuretic you have asthma Ask a doctor or pharmacist before use if you are taking a prescription drug for diabetes gout arthritis the blood thinning drug warfarin. null an allergic reaction occurs. Seek medical help right away. 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 null pain gets worse or lasts more than 10 days fever gets worse or lasts more than 3 days redness or swelling is present many new symptoms appear ringing in the ears or a loss of hearing occurs. These could be signs of a serious condition. Keep out of reach of children. Overdose warning: Taking more than the recommended dose can cause serious health problems. In case of overdose. get medical help or contact a Poison Control Center (1-800-222-1222) right away. Quick medical attention is critical for adults as well as for children even if you do not notice any signs or symptoms. Not Applicable Tamper Evident: Do not use if packette is damaged or open.