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.
cough that occurs with too much phlegm mucus)
cough that lasts or is chronic such as occurs with smoking, asthma, chronic bronchitis or emphysema
cough lasts more than 7 days, comes back, or is accompanied by fever, rash, or persistent headache.