ERWCNMIE Toenail Fungus Treatment Pen Tolnaftate, UNDECYLENIC ACID 1 g/100mL; 25 g/100mL Liquid — NDC 83766-108-01 (Billing 83766-0108-01)
This is a package of ERWCNMIE Toenail Fungus Treatment Pen Tolnaftate, UNDECYLENIC ACID 1 g/100mL; 25 g/100mL Liquid from Shenzhen Joyuflsh Technology Co.,Ltd., marketed since Sep 2025 and currently FDA-listed. It is the main listing for this product, which comes in 3 package sizes.
Identity & classification
Regulatory identifiers FDA, NLM and CMS codes for this package
- RxCUI (RxNorm): 2691548
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 1, 2026
- RxNorm (NLM RxNav) · catalog refreshed Oct 1, 2026
- Medi-Span GPI (licensed)
- First Databank (licensed) · refreshed Oct 1, 2026
RxNorm drug class
This medicine belongs to the Other antifungals for topical use class.
Where does this data come from?
- RxClass (NLM) · catalog refreshed Oct 1, 2026
Clinical
This is a topical liquid product marketed as a toenail fungus treatment under FDA's over-the-counter monograph rules. It contains tolnaftate and undecylenic acid, both ingredients typically used in antifungal products applied to skin and nails. Tolnaftate is commonly included in topical antifungals for various fungal infections, while undecylenic acid functions as an antifungal agent often found in foot and nail care products. The liquid form allows application directly to affected nails.
Patient education
Supplement & herbal interactions
Where does this data come from?
- MedlinePlus (NLM) · refreshed Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 1, 2026
Ask a licensed pharmacist directly — free, answered by our team.
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 system | Per mL | Per 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. | |
Where does this data come from?
- CMS NADAC weekly file
- CMS ASP pricing files · refreshed Sep 20, 2026
- CMS Medicaid State Drug Utilization Data · refreshed Oct 3, 2026
- CMS Part D plan pricing files · refreshed Sep 24, 2026
- VA National Acquisition Center price file
Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Marketing end | Status |
|---|---|---|---|---|
| 83766-0108-01 You're viewing this Main listing | 3 BOTTLE, WITH APPLICATOR in 1 PACKAGE / 5 mL in 1 BOTTLE, WITH APPLICATOR | 2025-09-02 | — | Active |
| 83766-0108-02 83766-108-02 | 6 BOTTLE, WITH APPLICATOR in 1 PACKAGE / 5 mL in 1 BOTTLE, WITH APPLICATOR | 2025-09-02 | — | Active |
| 83766-0108-03 83766-108-03 | 9 BOTTLE, WITH APPLICATOR in 1 PACKAGE / 5 mL in 1 BOTTLE, WITH APPLICATOR | 2025-09-02 | — | Active |
Pack size FAQ
What quantity is in this package?
What NDC number is used to bill for this package of ERWCNMIE Toenail Fungus Treatment Pen Tolnaftate, UNDECYLENIC ACID 1 g/100mL; 25 g/100mL Liquid?
Therapeutic equivalents
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA Orange Book · refreshed Sep 3, 2026
- CMS NADAC weekly file
Availability & generic status
We did not find an FDA-approved generic match for this exact strength, form and route.
Where does this data come from?
- FDA Orange Book · refreshed Sep 3, 2026
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.
Where does this data come from?
IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.- FDA label on DailyMed · label index refreshed Oct 1, 2026
- FDA openFDA NDC Directory · synced Oct 1, 2026
Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
Why might an inactive ingredient be missing?
Can inactive ingredients matter?
Manufacturer & labeler
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- Drugs@FDA
FDA label — Drug Facts FDA SPL
🎯 Indications and Usage ▾
For the effective treatment of nail fungus-including discoloration,. thickening, splitting, crumbling, and brittleness.
⏱️ Dosage and Administration ▾
1.Wash and dry your nails thoroughly before applying the product.Remove the cap that covers the brush. 2.Twist the end of the pen clockwise to dispense the liquid onto thebrush. 3.Apply the liquid three times to the areas requiring treatment,ensuring complete coverage of all affected parts. 4.Use 2 times daily for 2-4 weeks, depending on the condition beingtreated.
⚠️ Warnings ▾
For external use only.
🧪 Active Ingredient ▾
Tolnaftate 1% UNDECYLENIC ACID 25%
🧪 Inactive Ingredients ▾
ALCOHOL POLYETHYLENE GLYCOL PROPYLENE GLYCOL DIMETHICONE C12-15 ALKYL LACTATE ETHYLHEXYLGLYCERIN GLYCERIN LAUROCAPRAM SOPHORA FLAVESCENS ROOT TOCOPHEROL PHENOXYETHANOL WATER
🎯 Purpose ▾
Anti-fungal and Nail Renewal
📄 Do Not Use ▾
Children under 2 years of age. Pregnant or if there is any allergic reaction to this produce.
📄 When Using This Product ▾
Avoid contact with eyes. lf in eyes, rinse thoroughly with water.
📄 Stop Use and Ask a Doctor If ▾
lrritation occurs or discomfort persists.
📄 Keep Out of Reach of Children ▾
If accidental ingestion occurs, seek medical attention immediatelyand contact a Poison Control Center.
📄 Package Label / Principal Display Panel ▾
label
About this NDC listing & data coverage
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) | — Not published for this NDC The labeler did not submit a structured excipient list, or no SPL is 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. |