Ask a doctor before use if you have high blood pressure thyroid disease liver disease heart disease diabetes trouble urinating due to enlarged prostate gland cough that occurs with too much phlegm (mucus) persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema. Liver warning: This product contains acetaminophen. Severe liver damage may occur if you take more than 8 caplets in 24 hours, which is the maximum daily amount for this product 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. if you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric or emotional conditions, or Parkinson's disease), or for 2 weeks after stopping the MAOI drug. If you do not know if your prescription drug contains an MAOI, ask a doctor or pharmacist before taking this product. When using this product, do not use more than directed. Ask a doctor or pharmacist before use if you are taking the blood thinning drug warfarin. taking sedatives or tranquilizers When using this product, do not use more than directed. Stop use and ask a doctor if you get nervous, dizzy or sleepless pain, nasal congestion, or cough gets worse or lasts more than 7 days fever gets worse or lasts more than 3 days redness or swelling is present new symptoms occur cough comes back or occurs with rash or headache that lasts. These could be signs of a serious condition. Allergy Alert: Acetaminophen may cause severe skin reactions. Symptoms skin reddening blisters rash may include: If a skin reaction occurs, stop use and seek medical help right away Sore throat warning: If sore throat is severe, persists for more than 2 days, is accompanied or followed by fever, headache, rash, nausea, or vomiting, consult a doctor promptly.