if you or your child are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric, or emotional conditions, or Parkinson’s disease), or for two weeks after stopping the MAOI drug. If you do not know if you child’s or your prescription drug contains and MAOI, ask a doctor or pharmacist before taking this product or giving it to your child.
heart disease
high blood pressure
thyroid disease
diabetes
trouble urinating due to an enlarged prostate gland
cough that occurs with too much phlegm (mucus)
cough that lasts or is chronic such as occurs with asthma
sedatives or tranquilizers.
nervousness, dizziness, or sleeplessness occurs
if symptoms do not get better within 7 days or are accompanied by a fever.
cough lasts more than 7 days, comes back, or is accompanied by fever, rash, or persistent headache.