CankerMelts

What CankerMelts is

CankerMelts is a brand name for Benzocaine. The medicine, its uses, side effects and dosage are the same regardless of brand.

Used for: Uses for temporary relief of pain associated with: canker sores minor irritation mouth sores

From the CankerMelts label

Verbatim from this product's FDA label. Tap a section to expand.

How to take

USOfficial regulatory label· Posology· revised December 4, 2025

Directions Adults and children age 5 and older:
Affix one tablet as directed below and allow to slowly dissolve in the mouth. May be repeated every 2 hours as needed or directed by a doctor or dentist. This product may last over 2 hours.
Placement:
CankerMelts are bi-layered tablets with a dimple on the adhesive side and a pain reliever on the domed side marked CM. Place the adhesive side with a dimple against teeth or gums or braces or appliance. Place opposite or adjacent to the sore.
Hold tablet in place with your cheek or tongue for 10 seconds to initiate adhesion. Adhesion will strengthen over the next few minutes. It may be removed at any time.
Children under 5 years of age:
Do not use.

Side effects

USOfficial regulatory label· Undesirable effects· revised December 4, 2025

Stop use and ask a doctor or dentist if: if sore mouth symptoms do not improve in 7 days if irritation, pain, or redness persists or worsens if swelling, rash or fever develops

Warnings & precautions

USOfficial regulatory label· revised December 4, 2025

Warnings Methemoglobinemea warning:
Use of this product may cause methemoglobinemea, 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.
Do not use: this product for more than 7 days unless directed by a doctor or dentist in children under 5 years of age When using this product do not exceed recommended dosage. Stop use and ask a doctor or dentist if: if sore mouth symptoms do not improve in 7 days if irritation, pain, or redness persists or worsens if swelling, rash or fever develops 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.

Who should not take it

USOfficial regulatory label· Contraindications· revised December 4, 2025

Do not use: this product for more than 7 days unless directed by a doctor or dentist in children under 5 years of age

Not medical advice. Always read the patient information leaflet and follow your prescriber or pharmacist.

Same active ingredient

Other brands of Benzocaine in United States of America.

Thera Plus Maximum Strength Feminine Anti-Itch Gelato Topical Anesthetic Anestenka Primo Topical Anesthetic Candee Caine Topical Anesthetic Stallion STA-HARD Defend Oral Anesthetic Liquid Avant Finafta Instant Erection ANAL-ESE

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Brand names are compiled from public regulatory records for active-ingredient mapping only. Drugvu is not affiliated with any manufacturer. This is not medical advice.