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KANKA SoftBrush Benzocaine and ZINC CHLORIDE 20 mg/100g; .1 g/100g Gel — NDC 10157-2106-01 package photo
Label image from the product's FDA listing (DailyMed) — may show a different pack size or an older label revision.

KANKA SoftBrush Benzocaine and ZINC CHLORIDE 20 mg/100g; .1 g/100g Gel — NDC 10157-2106-1 (Billing 10157-2106-01)

by Blistex Inc · 1 APPLICATOR in 1 BLISTER PACK / 2 g in 1 APPLICATOR

This is a package of KANKA SoftBrush Benzocaine and ZINC CHLORIDE 20 mg/100g; .1 g/100g Gel from Blistex Inc, marketed since Sep 2019 and currently FDA-listed. It is the main listing for this product, which comes in 2 package sizes.

NDC 10157-2106-01
🏷️ FDA NDC (as labeled) 10157-2106-1 billing pads the package segment with a zero
This package
Contains2 g in 1 applicator Pack sizes2 compare ↓
Main listing for product 10157-2106 · Also comes in: 2 applicators 10157-2106-2
OTC On market Non-controlled ⇄ Compare with another NDC
🗂️ FDA directory synced Oct 1, 2026 · this listing last changed Jul 24, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

NDC database record

One package, one record: these facts belong to NDC 10157-2106-1 alone.

Record
FDA NDC Directory package listing · Human OTC drug
Code segments
10157 labeler · 2106 product · 1 package
Package marketed since
Sep 25, 2019
Sample package
No — commercial package
Listing certified through
Dec 31, 2026
Barcode (UPC)
0041388203928
FDA record last changed
Jul 24, 2026

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 10157-2106-1
Product NDC 10157-2106
11-digit billing NDC 10157210601
RxCUI 1249105
UNII U3RSY48JW5, 86Q357L16B
UPC 0041388203928
Application # M022
SPL Set ID 093f3545-1d8e-48a3-a533-e9c3ae6d740b
Established class (EPC) Standardized Chemical Allergen
Physiologic effect Increased Histamine Release; Cell-mediated Immunity
Chemical class Allergens
DEA schedule Non-controlled
Marketing category OTC MONOGRAPH DRUG
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2019-09-25
Route ORAL
Dosage form GEL
Substance BENZOCAINE; ZINC CHLORIDE
Quick answers
  • RxCUI (RxNorm): 1249105
Why two NDCs? The FDA registers this code as 10157-2106-1 — a 5-4-1 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the package segment → 10157-2106-01. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

RxNorm drug class

This medicine belongs to the Standardized Chemical Allergen class.

Pharmacologic class Standardized Chemical Allergen
Drug family (ATC) Local anesthetics, Anesthetics for topical use, Esters of aminobenzoic acid
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.

Clinical

🧪 What is this product?

Kanka SoftBrush is an over-the-counter oral gel marketed under FDA's monograph rules for oral pain-relief products. It contains benzocaine, a local anesthetic typically used to numb minor mouth and throat pain, and zinc chloride, an astringent commonly included in oral care products. This combination is meant to be applied directly to the affected area inside the mouth to provide temporary relief from minor mouth sores, canker sores, or similar oral irritation.

Supplement & herbal interactions

🌿 Drug–supplement interaction checker →
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

Pricing

A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.

Price systemPer gPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data.
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
ℹ️
No price is published for this exact package yet. CMS surveys NADAC per package size, so a different pack of the same drug often has one.
Try another pack size: 2 applicators
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

Packaging — all sizes for this product

Package NDCDescription Marketing startMarketing endStatus
10157-2106-01 You're viewing this Main listing 1 APPLICATOR in 1 BLISTER PACK / 2 g in 1 APPLICATOR 2019-09-25 — Active
10157-2106-02 10157-2106-2 2 APPLICATOR in 1 BLISTER PACK / 2 g in 1 APPLICATOR 2019-09-25 — Active

Pack size FAQ

What quantity is in this package?
This package is listed by the FDA — 1 applicator in 1 blister pack / 2 g in 1 applicator.
What NDC number is used to bill for this package of KANKA SoftBrush Benzocaine and ZINC CHLORIDE 20 mg/100g; .1 g/100g Gel?
Use the 11-digit billing form listed in the identifiers section of this page. Pharmacy and medical claims use the 11-digit form; the FDA label may print a shorter form of the same code.

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
KANKA SoftBrush 20 mg/100g; .1 g/100gthis 10157-2106-01 Blistex 1 applicator — — FDA listed —
About this product: other versions of the same ingredient, strength and form are listed above, least expensive first, with FDA equivalence ratings where available.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

Availability & generic status

🏛️
2019
On the market since
Sep 2019
📍
2026
Currently FDA-listed
7 years listed
🔒
·
No generic listed yet
brand only
ℹ️No FDA-approved generic found

We did not find an FDA-approved generic match for this exact strength, form and route.

Where does this data come from?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.

Inactive Ingredients / Excipients

Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.

💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.

  • UNII PDC6A3C0OX
    Glycerin is a clear, thick liquid derived from plant oils or fats. It acts as a humectant to retain moisture, a sweetener, and a solvent in medications.
  • UNII HIE492ZZ3T
    Phenoxyethanol is a synthetic preservative and antimicrobial agent used to prevent bacterial and fungal growth in medicines and cosmetic products, extending shelf life and maintaining product safety.
  • UNII G2M7P15E5P
    Polyethylene glycol 3350 is a synthetic polymer used as a solvent, humectant, and thickening agent in medicines. It helps dissolve other ingredients, retain moisture in the product, and achieve the desired consistency.
  • UNII B697894SGQ
    Polyethylene glycol 400 is a clear, thick liquid made from petroleum-derived polymers. It acts as a solvent and humectant in medicines, helping dissolve active ingredients and retain moisture in the formulation.
  • UNII ETJ7Z6XBU4
    Silicon dioxide is a naturally occurring mineral used as a glidant and anti-caking agent. It helps powder ingredients flow smoothly and prevents clumping during manufacturing and storage.
  • UNII 96K6UQ3ZD4
    Sucralose is a synthetic sweetener made from sugar. It's added to medicines to improve taste without adding calories, helping make bitter or unpleasant-tasting drugs easier to take.

6 inactive ingredients listed in the exact product block matched to this NDC.

The official label also statesflavors, glycerin, PEG-8, PEG-75, phenoxyethanol, silica, sucralose

Label-section wording can be broader than the structured product block and may mention additional formulation ingredients.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMed — ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.

Inactive ingredient FAQ

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

Manufacturer & labeler

LabelerBlistex Inc
FDA applicationM022 (OTC MONOGRAPH DRUG)
Labeler code10157
First marketedSep 2019
Product typeHuman Otc Drug
Portfolio15 products on file

More NDCs from Blistex Inc labeler code 10157

The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

FDA label — Drug Facts FDA SPL

The complete FDA label for this product — the official Drug Facts labeling, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage ⏱️ Dosage and Administration ⚠️ Warnings 📦 Storage and Handling 🧪 Active Ingredient 🧪 Inactive Ingredients 🎯 Purpose 📄 Do Not Use 📄 When Using This Product 📄 Keep Out of Reach of Children 📄 Package Label / Principal Display Panel
🎯 Indications and Usage 33 words ▾

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

⏱️ Dosage and Administration 95 words ▾

Directions adults and children 2 years of age and older: twist base clockwise to dispense. It may take up to 10 full turns to dispense the initial dose, but subsequent uses should require less than 1 turn. to clean brush tip, rinse with cold water dry affected area and apply medication by gently brushing the affected area. use up to 4 times daily, or as directed by a 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

⚠️ Warnings 198 words ▾

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.

Do not use for teething in children under 2 years of age When using this product do not use this product for more than 7 days unless directed by a dentist or doctor. If sore mouth symptoms do not improve in 7 days; if irritation, pain, or redness persists or worsens; or if swelling, rash or fever develops, see your dentist or doctor promptly. do not exceed recommended dosage. Keep out of reach of children.

If more than used for pain is accidentally swallowed, get medical help or contact a Poison Control Center right away.

📦 Storage and Handling 47 words ▾

Other information do not purchase if package has been opened replace cap after use to prevent drying avoid contact with the eyes this is a personal care item, and should be used by one individual only with zinc chloride, some color may be evident; this is normal

🧪 Active Ingredient 14 words ▾

Active ingredients Purpose Benzocaine 20.0% (w/w) Oral anesthetic/analgesic Zinc Chloride 0.1% (w/w) Oral astringent

🧪 Inactive Ingredients 9 words ▾

Inactive ingredients flavors, glycerin, PEG-8, PEG-75, phenoxyethanol, silica, sucralose

🎯 Purpose 14 words ▾

Active ingredients Purpose Benzocaine 20.0% (w/w) Oral anesthetic/analgesic Zinc Chloride 0.1% (w/w) Oral astringent

📄 Do Not Use 12 words ▾

Do not use for teething in children under 2 years of age

📄 When Using This Product 57 words ▾

When using this product do not use this product for more than 7 days unless directed by a dentist or doctor. If sore mouth symptoms do not improve in 7 days; if irritation, pain, or redness persists or worsens; or if swelling, rash or fever develops, see your dentist or doctor promptly. do not exceed recommended dosage.

📄 Keep Out of Reach of Children 26 words ▾

Keep out of reach of children. If more than used for pain is accidentally swallowed, get medical help or contact a Poison Control Center right away.

📄 Package Label / Principal Display Panel 62 words ▾

PRINCIPAL DISPLAY PANEL - 2.0 g Applicator Blister Pack Blistex ® MAXIMUM STRENGTH KANKA ® Soft Brush ® Tooth & Gum Pain Gel ORAL ANESTHETIC/ASTRINGENT Maximum Pain Relief Dual Medications Gentle Application Easy Reach Design Ultra Soft Tip 50+ Uses Toothaches Brace/Denture Irritation Gum Discomfort Canker Sores Net Wt. 0.07 oz. (2.0 g) PRINCIPAL DISPLAY PANEL - 2.0 g Applicator Blister Pack

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗

Reported adverse events (FAERS)

Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for Benzocaine and ZINC CHLORIDE — the ingredient across all brands.

Top reported reactions

Adverse Reaction1
Appendix Disorder1
Atrial Fibrillation1
Blood Bilirubin Increased1
Blood Creatinine Decreased1
Blood Pressure Diastolic Increased1
Blood Sodium Decreased1

Reporter sex

5 reports
Reports over time (by year) — tap or hover for the count & year
2021 2022 2024 2026 1 0
Most recent year is provisional (FAERS lags ~3 months).
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.

About this NDC listing & data coverage

Over-the-counter (OTC) product
What data is (and isn’t) available for this NDC — tap to expand
NDC identity (package / product / labeler codes) ✓ Available
Labeler ✓ Available
Product & package description ✓ Available
Marketing category & status ✓ Available
Active ingredient / dosage form / route ✓ Available
FDA label (SPL via DailyMed) ✓ Available
Package photos ✓ Available
Inactive ingredients (structured) ✓ Available
NADAC pharmacy acquisition price (CMS) — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey.
Orange Book / therapeutic-equivalence data — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope.
HCPCS J-code billing crosswalk — Not published for this NDC Most self-administered / retail products have no J-code — that is normal.
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

Is this NDC FDA-approved?
An NDC listing does not by itself establish FDA approval — the NDC Directory records that a product is listed with FDA, not that it was reviewed and approved. This listing's marketing category is "Otc Monograph Drug". Products approved under an application carry an NDA, ANDA, or BLA number.
Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The form printed on the packaging and shown on DailyMed is the one the FDA registered. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero and the dashes are dropped. The Identity section at the top of this page lists each form of this code.
Is this package still being marketed?
Yes, per the latest FDA NDC Directory data on this page: this package is listed as actively marketed, with no marketing end date reported by Blistex Inc. Listing status can change — the directory data on this page refreshes weekly.
Does this product come in other package sizes?
Yes — the FDA directory lists 1 other package presentation of this same product, including 2 applicators (10157-2106-02). Each has its own NDC and its own page — see the package list near the top of this page.
Who lists this product with the FDA?
Blistex Inc is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as an over-the-counter product, so it does not require a prescription. Follow the package directions, and ask your pharmacist if you are unsure whether it is right for you.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.
← 10157-2103-01 · Blistex 10157-2112-01 · Blistex →
For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.