Methemoglobinemia warning: Use of this product may cause methemoglobinemia, a serious condition that must be treated promptly because it reduces the amount of oxygen carried in blood. This can occur even if you have used this product before.
Stop use and seek immediate medical attention if you or a child in your care develops: pale, gray, or blue colored skin (cyanosis); headache; rapid heart rate; shortness of breath; dizziness or lightheadedness; fatigue or lack of energy.
Allergy alert: Do not use this product if you have a history of allergy to local anesthetics such as procaine, butacaine, benzocaine, or other 'caine' anesthetics. sore throat warning: If sore throat is severe, persists for more than 2 days, is accompanied or followed by fever, headache, rash, swelling, nausea, or vomiting, consult a doctor promptly.
Do not use: if you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric, or emotional conditions, or Parkison'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; for teething; in children under 6 years of age. When using this product do not exceed recommended dosage. Ask a doctor before use if you have: persistent or chronic cough such as occurs with smoking, asthma, or emphysema; cough that occurs with too much phlegm (mucus).
Stop use and ask a doctor or dentist if: sore mouth symptoms do not improve in 7 days; irritation, pain, or redness persists or worsens; swelling develops; cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache. These could be signs of a serious condition.
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 right away.