Mouth Pain Liquid | Kank-A® | 0.33 fl. oz. (9.75 mL)



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Maximum Strength: Maximum Pain Relief

For Canker Sore: Includes Applicator

Forms Protective Coating for Mouth Sores

The Complete Solution For Canker Sores And Other Sores In The Mouth.

Liquid forms a long-lasting shield of protection and max strength medicine.

For the temporary relief of pain due to canker sores, minor irritation of the mouth and gums caused by dentures or orthodontic appliances, or minor injury of the mouth or gums.

Kank-A® Mouth Pain Liquid is ideal for treating canker sores and other abrasions inside the mouth. Kank-A Liquid delivers maximum strength medication while forming a long-lasting barrier that protects.

Kank-A combines the maximum allowable level of anesthetic for fast, temporary pain relief, with a film forming agent for long-lasting protection. Unlike most products which quickly wash away, Kank-A’s coating holds the anesthetic in contact with the sore and acts as a barrier against further irritation.

Kank-A Liquid also includes an integrated applicator allowing for accurate, mess-free delivery of medication every time – no fingers, swabs, etc. required.


  • MAXIMUM PAIN RELIEF: Contains benzocaine for fast pain relief of canker sores and other sores inside the mouth
  • PROTECTIVE BARRIER: Forms a long-lasting film barrier to protect sores from further irritation
  • EASY APPLICATION: Integrated control-tip applicator allows for accurate, mess-free application
  • ADA ACCEPTED: Accepted by the American Dental Association
  • COMPLETE SOLUTION: For canker sores, denture abrasions, and other mouth sores

Active Ingredients

 Benzocaine 20.0% (w/w)

Inactive Ingredients

Benzyl alcohol, cetylpridinium chloride, compound benzolin tincture, dimethyl isosorbide, ethylcellulose, flavor, octylacrylamide/acrylates/butylaminoethyl methacrylate copolymer, oleth-10, PEG-6, propylene, glycol, ricinus communis (castor) seed oil, SD alcohol 38-B (29.6% v/v), sodium saccharin, sucralose, tannic acid

Recommended Dose

Adults and children 2 years of age and older:

  • To assure formation of a long lasting film coating, dry affected area and apply medication undiluted with applicator
  • Allow a few seconds for coating to form
  • Use up to 4 times daily or as directed by dentist or doctor

Children under 12 years of age: 

Should be supervised in the use of this product

Children under 2 years of age: 

Do not use


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 your child in your care develops:

Pale, gray or blue colored skin (cyanosis)


Rapid heart rate

Shortness of breath

Dizziness or lightheadedness

Fatigue or lack of energy

Legal Disclaimer

Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.

Legal Disclaimer

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