BENZOCAINE Drug Interactions: What You Need to Know

DRUG INTERACTIONS Patients that are administered local anesthetics may be at increased risk of developing methemoglobinemia when concurrently exposed to the following oxidizing agents: Class Examples Nitrates/Nitrites nitroglycerin, nitroprusside, nitric oxide, nitrous oxide Local anesthetics benzocaine, lidocaine, bupivacaine, mepivacaine, tetracaine, prilocaine, procaine, articaine, ropivacaine Antineoplastic agents cyclophosphamide, flutamide, rasburicase, ifosfamide, hydroxyurea Antibiotics dapsone, sulfonamides, nitrofurantoin, para-aminosalicylic acid Antimalarials chloroquine, primaquine Anticonvulsants phenytoin, sodium valproate, phenobarbital Other drugs acetaminophen, metoclopramide, sulfa drugs (i.e., sulfasalazine), quinine

Contraindications Do not use Cetacaine Gel to treat infants or children younger than 2 years. Cetacaine is not suitable and should never be used for injection. Do not use on the eyes. To avoid excessive systemic absorption, Cetacaine Topical Anesthetic Gel should not be applied to large areas of denuded or inflamed tissue.

Cetacaine Topical Anesthetic

Gel should not be administered to patients who are hypersensitive to any of its ingredients or to patients known to have cholinesterase deficiencies. Tolerance may vary with status of the patient.

Cetacaine Topical Anesthetic

Gel should not be used under dentures or cotton rolls, as retention of the active gel ingredients under a denture or cotton roll could possibly cause an escharotic effect. Routine precaution for the use of any topical anesthetic should be observed when using Cetacaine Topical Anesthetic Gel.

Warnings 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. If a skin reaction occurs, stop use and seek medical help right away.

Sore Throat

Warning : Severe or persistent sore throat or sore throat accompanied by high fever, headache, nausea, and vomiting may be serious. Consult doctor promptly. Do not use more than 2 days or administer to children under 6 years of age unless directed by a doctor. Do not use this product 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 are uncertain whether your prescription drug contains an MAOI, consult a health care professional before taking this product for teething in children under 6 years of age Ask a doctor before use if you have a persistent or chronic cough such as occurs with smoking, asthma, or emphysema a cough is accompanied by excessive phlegm (mucus) When using this product do not exceed recommended dosage. Stop use and ask a dentist or doctor if sore mouth symptoms do not improve in 7 days irritation, pain or redness persists or worsens swelling, rash or fever develops cough persists for more than 1 week, tends to recur, or is accompanied by a high fever, rash, or persistent headache. These could be symptoms of a serious condition. If pregnant or breast-feeding, ask a health care 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.