Do not use 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. Stop use and ask a doctor if cough lasts more than 7 days, comes back, or is accompanied by fever, rash, or persistent headache, These could be signs of a serious condition. Ask a doctor before use if you have glaucoma cough that occurs with too much phlegm (mucus) breathing problem or chronic cough that lasts or as occurs with smoking, asthma, chronic bronchitis or emphysema trouble urinating due to enlarged prostate gland Ask a doctor or pharmacist before use if you are taking sedatives or tranquilizers. 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 (1-800-222-1222) right away. When using this product mexcitability may occur, especially in children marked drowsiness may occur avoid alcoholic drinks alcohol, sedatives, and tranquilizers may increase drowsiness be careful when driving a motor vehicle or operating machinery.