Extra Strength Toenail Renewal Pen Undecylenic Acid, Tolnaftate .25 g/mL; .01 g/mL Liquid, 5 mL
🆔 Identity & classification
Where does this data come from?
🏷️ RxNorm drug class
This medicine belongs to the Other antifungals for topical use class.
Where does this data come from?
🏭 Manufacturer & labeler
Where does this data come from?
🩺 Clinical
This is a topical liquid product marketed as an over-the-counter monograph drug, applied directly to toenails. It contains tolnaftate and undecylenic acid, two antifungal agents commonly used together in products intended to address fungal nail conditions. Both ingredients are typically found in antifungal treatments designed for topical use on nails and skin.
Patient education
Supplement & herbal interactions
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🧪 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.
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UNII 9E8X80D2L0
A synthetic form of vitamin E used as an antioxidant and preservative in medications. It helps prevent the active ingredients from degrading when exposed to oxygen or light.
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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.
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UNII 6SO6U10H04
Biotin is a B-vitamin used as a nutritional supplement in some medications. It may also serve as a colorant or marker in formulations.
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UNII 9H4PO4Z4FT
A sulfur-containing organic compound used as a solvent and penetration enhancer in medicines. It helps dissolve active ingredients and improve their absorption through skin or mucous membranes.
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UNII A1A1I8X02B
A clear liquid solvent derived from ethylene glycol. It helps dissolve active ingredients and improve how the medicine flows and mixes in liquid formulations.
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UNII 147D247K3P
Ethylhexylglycerin is a synthetic preservative used to prevent bacteria and mold from growing in medicines and personal care products. It helps keep the product safe and stable throughout its shelf life.
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UNII 2R04ONI662
Eucalyptus oil is a fragrant liquid extracted from eucalyptus tree leaves. It's used in medicines as a flavor, scent, or soothing agent in topical products and cough preparations.
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UNII 578389D6D0
Clove oil is an essential oil derived from clove plant buds. It's used in medicines as a flavoring agent and for its mild preservative properties to help maintain product stability.
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UNII 33X04XA5AT
Lactic acid is a naturally occurring organic acid derived from milk or plant sources. It lowers and maintains pH in formulations, helps preserve the product, and can enhance ingredient stability and absorption.
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UNII M6QU9ZUH2X
A natural essential oil derived from the Manuka tree, used in medicines as a fragrance, flavor enhancer, and preservative to improve product appeal and shelf stability.
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UNII VIF565UC2G
Tea tree oil is an essential oil extracted from the leaves of the Australian tea tree plant. In medicines, it typically serves as a flavoring agent, fragrance, or antimicrobial component in topical formulations.
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UNII 7D0CGR40U1
A natural oil extracted from oregano leaves, used as a flavoring agent and preservative in medicines. It adds taste and may help protect the product from degradation.
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UNII O414PZ4LPZ
A beta hydroxy acid derived from willow bark or synthesized chemically. In topical medicines, it acts as a keratolytic agent that helps soften and shed dead skin cells, improving penetration of active ingredients.
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UNII 724GKU717M
Jojoba oil is a natural liquid wax extracted from jojoba plant seeds. It's used in medicines as an emollient and lubricant to soften and smooth the product, and sometimes as a carrier or penetration enhancer.
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UNII GW89575KF9
Squalane is a lightweight oil derived from plant sources or synthesized. It acts as an emollient and lubricant in formulations, helping ingredients blend smoothly and improving product texture and spreadability.
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UNII 8W8T17847W
A nitrogen-containing chemical compound used in pharmaceuticals as a humectant to retain moisture, and sometimes as a keratolytic agent in topical formulations to help soften and remove dead skin cells.
16 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.Inactive ingredient FAQ
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💲 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?
🔁 Therapeutic equivalents
Where does this data come from?
⏳ 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?
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 85966-0012-01 You're viewing this | 5 mL in 1 BOTTLE, DROPPER (85966-012-01) | 2026-04-08 | Active |
🧭 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. |
Questions about this listing
Is this NDC FDA-approved?
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Is the NDC printed on the package the same as the 11-digit billing NDC?
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Do I need a prescription for this product?
Where does this data come from?
📄 FDA label — Drug Facts FDA SPL
🎯 Indications and Usage ▾
Helps improve the appearance of nails and supports the renewal of discolored or rough nail surfaces through mechanical and chemical exfoliating action. Proven clinically effective in the treatment of most athlete's foot (tinea pedis), jock itch (tinea cruris), and ringworm (tinea corporis). Relieves itching, scaling, cracking, burning, and discomfort associated with these conditions.
⏱️ Dosage and Administration ▾
Clean the affected nail and dry thoroughly. File the nail surface to remove thickness Pro Tip: To prevent re-infection, always disinfect the file with 70% rubbing alcohol after each use. Twist the base of the pen clockwise until the liquid flows to the nib.
Apply a thin layer of the product over affected area twice daily (morning and night. Wait 2-3 minutes for the treatment to be fully absorbed. Allow to dry, then apply the affected toe with the waterproof protective film.
For best results, use overnight or before wearing shoes to keep the medication in place. NOTE: 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 jock itch, use daily for a full 4-week course.
If symptoms persist, consult a doctor. Not intended for use on the scalp or nails. This product is not effective on the scalp or nails.
⚠️ Warnings ▾
For external use only. Store in a cool place and avoid sunshine and heat.
🧪 Active Ingredient ▾
Undecylenic Acid 25% Tolnaftate 1%
🧪 Inactive Ingredients ▾
Urea Ethoxydiglycol Lactic Acid Dimethyl Sulfone Biotin Melaleuca Ericifolia Leaf Oil Leptospermum Scoparium Branch/Leaf Oil Eucalyptus Globulus Leaf Oil Origanum Vulgare Leaf Oil Eugenia Caryophyllus (Clove) Bud Oil Squalane Simmondsia Chinensis Seed Oil Salicylic Acid Tocopheryl Acetate Ethylhexylglycerin Aqua
🎯 Purpose ▾
Antifungal