ZYNTHIX Undecylenic Acid Solution 1 g/4mL Solution — NDC 87575-4041-1 (Billing 87575-4041-01)
This is a package of ZYNTHIX Undecylenic Acid Solution 1 g/4mL Solution from Shenzhen Siwei Yijiu Trading Co., Ltd., marketed since Apr 2026 and currently FDA-listed. It is this product's only package size.
NDC database record
One package, one record: these facts belong to NDC 87575-4041-1 alone.
- Record
- FDA NDC Directory package listing · Human OTC drug
- Code segments
- 87575 labeler · 4041 product · 1 package
- Package marketed since
- Apr 8, 2026
- Sample package
- No — commercial package
- Listing certified through
- Dec 31, 2027
- Barcode (UPC-A, from the NDC)
- 3 8757540411 3
- FDA record last changed
- Jul 24, 2026
Identity & classification
Regulatory identifiers FDA, NLM and CMS codes for this package
- RxCUI (RxNorm): 998329
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 5, 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
- It treats three common fungal skin infections: athlete's foot (the itchy, scaly condition that affects the feet and toes), jock itch (a fungal rash in the groin area), and ringworm...
- What exactly does undecylenic acid treat?
- For athlete's foot and ringworm, most products are used daily for 4 full weeks. For jock itch, 2 weeks of daily use is typically recommended. Some nail products note that visible i...
- That depends on the product. Most undecylenic acid creams, sprays, and general topical solutions are not effective on nails and should not be used there. However, some products — l...
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 5, 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 5, 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 |
|---|---|---|---|---|
| 87575-4041-01 You're viewing this Main listing | 3 APPLICATOR in 1 BOX / 4 mL in 1 APPLICATOR | 2026-04-08 | — | Active |
Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Undecylenic Acid 25 g/100mL 49283-0025-05 | Chemco | 15 ml | — | — | FDA listed | — |
| Antifungal 25 g/100mL 49283-0250-05 | Chemco | 15 ml | — | — | FDA listed | — |
| Myco Nail A Antifungal Solution 250 mg/mL 52083-0242-30 | Kramer | 1 bottle | — | — | FDA listed | — |
| Hongo Killer 25 mg/100mL 58593-0826-01 | Efficient | 30 ml | — | — | FDA listed | — |
| Terpenicol Antifungal 25 g/100mL 63347-0600-01 | Blaine | 37.5 ml | — | — | FDA listed | — |
| Premier Value Antifungal Maximum Strength 25 mg/30mL 68016-0474-00 | PHARMACY | 30 ml | — | — | FDA listed | — |
| ELON Dual Defense Anti Fungal Formula 250 mg/mL 71171-0778-15 | Little | 1 bottle | — | — | FDA listed | — |
| Human Science Antifungal Foot Care 250 mg/mL 71356-0156-01 | HUMAN | 30 ml | — | — | FDA listed | — |
| Tripenicol S .25 g/mL 73352-0550-01 | Trifluent | 37.5 ml | — | — | FDA listed | — |
| Bldaxn Nail Repair Pen .25 g/mL 76986-0022-01 | Guangdong | 3 bottles | — | — | FDA listed | — |
| Nerante Fungus Nail Pen .25 g/mL 76986-0030-01 | Guangdong | 6 tubes | — | — | FDA listed | — |
| Fungal Nail Treatment .25 g/mL 76986-0031-01 | Guangdong | 30 ml | — | — | FDA listed | — |
| FLUSH Maximum Strength Antifungal formula 250 mg/mL 80569-0084-15 | Triple | 15 ml | — | — | FDA listed | — |
| Antifungal Treatment Liquid 25 undeclylenic Acid 250 mg/mL 83691-0000-00 | SANSAR, | 1 bottle | — | — | FDA listed | — |
| Foot Cure Nail Repair Pen 25 g/100mL 83691-0011-01 | SANSAR, | 4 applicators | — | — | FDA listed | — |
| Omzok Antifungal Pen 25 g/100mL 83804-0007-01 | Shenzhen | 5 applicators | — | — | FDA listed | — |
| WRFAATGO ANTIFUNGAL Pen Undecylenic Acid 25% .25 g/mL 83804-0012-01 | Shenzhen | 5 tubes | — | — | FDA listed | — |
| Pharmbanner Fungal Nail Renewal 25 g/100mL 83818-0019-01 | Shenzhen | 2 bottles | — | — | FDA listed | — |
| MEOLY Fungal Nail Renewal 25 g/100mL 83818-0026-01 | Shenzhen | 2 bottles | — | — | FDA listed | — |
| Fungal Nail Renewal 25 g/100mL 84007-0130-01 | Medhome | 30 ml | — | — | Discontinued | — |
| Klipp EXTRA STRENGTH TOENAIL FUNGUS TREATMENT 25 g/100mL 84558-0018-01 | GUANGZHOU | 30 ml | — | — | FDA listed | — |
| Klipp Fungal Nail Treatment 25 g/100mL 84558-0019-01 | GUANGZHOU | 30 ml | — | — | FDA listed | — |
| Nail Repair Pen .25 g/mL 84763-0008-01 | Yunqi | 8 tubes | — | — | FDA listed | — |
| Antifungal Toenail Fungus Pen .25 g/mL 84763-0009-01 | Yunqi | 12 ml | — | — | FDA listed | — |
| Fungal Nail Repair Pen .25 g/mL 84763-0011-01 | Yunqi | 5 bottles | — | — | FDA listed | — |
| Antifungal Pen 25 g/100mL 84896-0008-01 | Guangzhou | 15 ml | — | — | FDA listed | — |
| Nail Extra Strength Repair Pen 25 g/100mL 84896-0009-01 | Guangzhou | 12 ml | — | — | FDA listed | — |
| Antifungal Pen 25 g/100mL 85210-0001-01 | XF | 1 applicator | — | — | FDA listed | — |
| South Beach Multi-Purpose Nail Repair 25 g/100mL 85214-0025-05 | SOUTH | 1 bottle | — | — | FDA listed | — |
| Bldaxn FUNGAL NAIL RENEWZL 25 g/100mL 85248-0029-01 | Jiangxi | 2 bottles | — | — | FDA listed | — |
| Puvida Fungal Nail Renewal 25 g/100mL 85248-0090-01 | Jiangxi | 30 ml | — | — | FDA listed | — |
| ViLLsure Antifungal Pen 25 g/100mL 85248-0151-01 | Jiangxi | 5 tubes | — | — | FDA listed | — |
| Serynth Antifungal Nail Treatment Pen 25 g/100mL 85248-0165-01 | Jiangxi | 2.5 ml | — | — | FDA listed | — |
| LYSSERA Fungal Nail Renewal 25 g/100mL 85248-0174-01 | Jiangxi | 4 tubes | — | — | FDA listed | — |
| Werpeka Fungal Nail Renewal 25 g/100mL 85248-0184-01 | Jiangxi | 2.5 ml | — | — | FDA listed | — |
| Toyknier Multi-Purpose Treatment 25 g/100mL 85248-0187-01 | Jiangxi | 30 ml | — | — | FDA listed | — |
| Minadcin Toenail Fungus Pen 25 g/100mL 85248-0199-01 | Jiangxi | 5 tubes | — | — | FDA listed | — |
| Beukow Antifungal Pen 25 g/100mL 85248-0200-01 | Jiangxi | 4 tubes | — | — | FDA listed | — |
| Kakalsa TOENAIL FUNGUS TREATMENT 25 g/100mL 85248-0204-01 | Jiangxi | 4 tubes | — | — | FDA listed | — |
| Avenaster Fungal Nail Care Duo Set (Night) 25 g/100mL 85248-0214-01 | Jiangxi | 3 tubes | — | — | FDA listed | — |
| TrpWinner TOENAIL FUNGUS PEN 25 g/100mL 85248-0218-01 | Jiangxi | 4 ml | — | — | FDA listed | — |
| Cyyzrose Antifungal Nail 25 g/100mL 85248-0222-01 | Jiangxi | 3 tubes | — | — | FDA listed | — |
| Bodykoo Nail Fungus Treatment 25 g/100mL 85248-0227-01 | Jiangxi | 15 ml | — | — | FDA listed | — |
| Sovs Fungal Nail Repair Renewal 25 g/100mL 85248-0232-01 | Jiangxi | 30 ml | — | — | FDA listed | — |
| Fungal Nail Treatment 25 g/100mL 85308-0002-01 | Gaoye | 30 ml | — | — | Discontinued | — |
| Fungal Nail Treatment 25 g/100mL 85308-0003-01 | Gaoye | 30 ml | — | — | Discontinued | — |
| Toenail Fungus Treatment 25 g/100mL 85569-0005-01 | 100 | 30 ml | — | — | FDA listed | — |
| Tegasolve Toenail Fungus Treatment 25 g/100mL 85578-0003-01 | Zhengzhou | 1 bottle | — | — | FDA listed | — |
| OetMoe Antifungal Solution 250 mg/mL 85636-0007-01 | Shenzhen | 20 ml | — | — | FDA listed | — |
| Bee Venom Toenail Fungus Treatment 250 mg/mL 85636-0008-01 | Shenzhen | 20 ml | — | — | FDA listed | — |
| Bee Venom Toenail Fungus Treatment 250 mg/mL 85636-0011-01 | Shenzhen | 20 ml | — | — | FDA listed | — |
| Tobcharm Fungus Nail Renewal 25 g/100mL 85817-0005-01 | Guangzhou | 2 bottles | — | — | FDA listed | — |
| Arflom Toenail Fungus Treatment Liquid 25 g/100mL 85817-0006-01 | Guangzhou | 2 bottles | — | — | FDA listed | — |
| VTROUY Fungus Nail Renewal 25 g/100mL 85817-0007-01 | Guangzhou | 2 bottles | — | — | FDA listed | — |
| FUNGLARA Anti Fungal 250 mg/mL 87028-0876-00 | FUNGLARA | 15 ml | — | — | FDA listed | — |
| Nail Fungal Pen 25 g/100g 87298-0015-01 | Guangzhou | 3 g | — | — | FDA listed | — |
| Toenail Fungus Pen 25 g/100g 87298-0016-01 | Guangzhou | 3 g | — | — | FDA listed | — |
| CuraNails Antifungal Pen 25 g/100mL 87300-0001-01 | Quality | 3 applicators | — | — | FDA listed | — |
| Lakeim Fungal Nail Repair Pen 25 g/100mL 87408-0007-01 | Guangzhou | 3 tubes | — | — | FDA listed | — |
| Lakeim FUNGAL NAIL RENEWAL Kit 25 g/100mL 87408-0009-01 | Guangzhou | 2 bottles | — | — | FDA listed | — |
| OSIMOON Fungal Nail Treatment 25 g/100mL 87408-0014-01 | Guangzhou | 2 bottles | — | — | FDA listed | — |
| Uauko Fungal Nail Treatment 25 g/100mL 87408-0018-01 | Guangzhou | 2 bottles | — | — | FDA listed | — |
| VTROUY Fungal Nail Renewal Pen 25 g/100mL 87408-0023-01 | Guangzhou | 3 tubes | — | — | FDA listed | — |
| YEARCHOICE Fungal Nail Repair Pen 25 g/100mL 87408-0024-01 | Guangzhou | 3 tubes | — | — | FDA listed | — |
| Assielf Antifungal Pen 25 g/100mL 87418-0002-01 | Shenzhen | 3 tubes | — | — | FDA listed | — |
| Zynthix 1 g/4mLthis 87575-4041-01 | Shenzhen | 3 applicators | — | — | FDA listed | — |
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA Orange Book · refreshed Oct 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 Oct 3, 2026
What it looks like
Where does this data come from?
- FDA label on DailyMed · label index refreshed Oct 5, 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.
🧪 Avoiding an ingredient? See Undecylenic inactive ingredients by manufacturer: every current product's list side by side, so you can ask your pharmacy for the version that does not list it.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
-
0.2 g / 4 mL
UNII 3K9958V90M
A liquid solvent derived from fermentation or chemical synthesis. In medicines, alcohol dissolves active ingredients, helps preserve the product, and improves how the body absorbs certain drugs.
-
0.004 g / 4 mL
UNII M89NIB437X
Borneol is a waxy, plant-derived alcohol obtained from camphor trees or made synthetically. It's used in medicines as a flavoring agent and penetration enhancer to improve how active ingredients are absorbed.
-
0.04 g / 4 mL
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.
-
1 g / 4 mL
UNII ND2M416302
Isopropyl alcohol is a clear liquid solvent derived from petroleum. In medicines, it dissolves active ingredients and other components, helps the product flow smoothly, and aids in sterilization during manufacturing.
-
0.08 g / 4 mL
UNII L7T10EIP3A
A cooling compound from mint plants used as a flavoring agent and to create a fresh sensation in medicines. It helps mask bitter tastes and improve how the product feels in the mouth.
-
1.676 g / 4 mL
UNII 059QF0KO0R
Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.
6 inactive ingredients listed in the exact product block matched to this NDC.
Label-section wording can be broader than the structured product block and may mention additional formulation ingredients.
Where does this data come from?
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.- FDA label on DailyMed · label index refreshed Oct 5, 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 ▾
Uses For the treatment of most athlete’s foot, jock itch, and ringworm. Relieves itching, burning, cracking, and scaling.
⏱️ Dosage and Administration ▾
Directions Clean the affected area and dry thoroughly. Twist off the cap, rotate the bottom to dispense solution to the brush. Apply a thin layer to the affected area twice daily (morning and night) or as directed by a doctor.
For athlete's foot: pay special attention to spaces between the toes; wear well-fitting, ventilated shoes, and change shoes and socks at least once daily. For athlete's foot and ringworm, use daily for 4 weeks. For jock itch, use daily for 2 weeks.
Supervise children in the use of this product.
⚠️ Warnings ▾
Warnings For external use only. This product is not effective on the scalp. Flammable.
Keep away from fire or flame. Do not use On children under 2 years of age unless directed by a doctor. For diaper rash.
When using this product Avoid contact with eyes. May cause mild stinging or burning sensation on broken skin. Stop use and ask a doctor if Irritation occurs or gets worse.
There is no improvement within 4 weeks (for athlete's foot and ringworm) or 2 weeks (for jock itch).
🧪 Active Ingredient ▾
Active ingredient Undecylenic Acid 25%
🧪 Inactive Ingredients ▾
Inactive ingredients Alcohol denat, Borneol, Glycerin, Isopropyl alcohol, Menthol, Water.
🎯 Purpose ▾
Purpose Antifungal
📄 Do Not Use ▾
Do not use On children under 2 years of age unless directed by a doctor. For diaper rash.
📄 When Using This Product ▾
When using this product Avoid contact with eyes. May cause mild stinging or burning sensation on broken skin.
📄 Stop Use and Ask a Doctor If ▾
Stop use and ask a doctor if Irritation occurs or gets worse. There is no improvement within 4 weeks (for athlete's foot and ringworm) or 2 weeks (for jock itch).
🤰 If Pregnant or Breast-Feeding ▾
Pregnancy or breast feeding section If pregnant or breast-feeding, ask a health professional before use.
📄 Keep Out of Reach of Children ▾
Keep out of reach of children If swallowed, get medical help or contact a Poison Control Center right away.
📄 Other Information ▾
Other information Store at room temperature 15°-30°C (59°-86°F). Protect from excessive heat and direct sunlight.
📄 Questions or Comments ▾
Questions? 213-396-1046 / [email protected]
📄 Package Label / Principal Display Panel ▾
Box Front Panel ZYNTHIX ANTIFUNGAL PEN 25% Undecylenic Acid Maximum Strength Helps Treat Fungal Infections Relieves Itching & Burning Supports Healthy Nails NET:12ml/0.42fl.oz (3x4mL) Product Packaging
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) | ✓ 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. |