Warnings: Liver warning: This product contains acetaminophen. Severe liver damage may occur if you take more than 4,000 mg of acetaminophen in 24 hours; with other drugs containing acetaminophen; 3 or more alcoholic drinks every day while using this product. Do not use: with any other drug containing acetaminophen (prescription or nonprescription) (If you are not sure whether a drug contains acetaminophen, ask a doctor or pharmacist); in children under 12 years of age; with any other product containing diphenhydramine, even one used on skin; if you have ever had an allergic reaction to this product or any of its ingredients. Ask a doctor before use if you have liver disease; a breathing problem such as emphysema or chronic bronchitis; glaucoma; trouble urinating due to an enlarged prostate gland. Ask a doctor or pharmacist before use if you are taking the blood thinning drug warfarin; taking sedatives or tranquilizers. When using this product: drowsiness will occur; avoid alcoholic drinks; do not drive a motor vehicle or operate machinery. Stop use and ask a doctor if: sleeplessness persists continuously for more than 2 weeks (insomnia may be a symptom of serious medical illness); pain gets worse to lasts for more than 10 days; fever gets worse or lasts more than 3 days; redness or swelling is present; new symptoms occur. These could be signs of a serious condition. Pregnancy/breast-feeding warning: If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. Overdose Warning: Taking more than the recommended dose (overdose) may cause liver damage. In case of overdose, get medical help or contact a Poison Control Center right away. Quick medical attention is critical for adults as well as for children even if you do not notice any signs or symptoms. Other warnings: Attention: Do not use if imprinted seal under cap is missing or broken. Child-resistant packaging.