Reye's Syndrome: Children and teenagers who have or are recovering form chicken pox or flu-like symptoms should not use this product. When using this product, if changes in behavior with nausea or 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. Do not take if you are: taking other salicylate products; allergic to salicylates (including aspirin). Do not use if you have: an ulcer, a bleeding problem, bloody or black stool. Ask a doctor before use if you have: mucus in stool, fever, a sodium-restricted diet. Ask a doctor or pharmacist before use if you are taking any drug for: anticoagulation (thinning blood), diabetes, gout, arthritis. When using this product a temporary, but harmless, darkening of the stool and/or tongue may occur. Stop use and ask a doctor if: symptoms get worse, ringing in the ears or loss of hearing occurs, diarrhea lasts more than 2 days. If pregnant or breast-feeding, ask a health professional before use. Keep this and all drugs out of the reach of children. In case of accidental overdose, seek professional assistance or contact a Poison Control Center (1-800-222-1222) immediately. Tamper Evident: Do not use if printed safety seal is broken or missing.