When using this product, do not exceed recommended dosage. 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. Warnings Do not use in a child under 4 years of age in a child who is 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 child's prescription drug contains an MAOI, ask a doctor or pharmacist before giving this product. Stop use and ask a doctor if nervousness, dizziness or sleeplessness occurs symptoms do not improve within 7 days or occur with fever cough persists more than 7 days, comes back or occurS with a fever, rash, or persistent headache. These could be signs of a serious condition. Ask a doctor before use if the child has heart disease high blood pressure thyroid disease diabetes cough that occurs with too much phlegm (mucus) chronic cough that lasts, or as occurs with asthma.