Terbinafine
Terbinafine is an allylamine antifungal used to treat fungal infections of the nails (as tablets) and of the skin, such as athlete’s foot, jock itch and ringworm (as topical products).
🧬 Where this information comes from Click to expand
The clinical label records used on this page are FDA-filed Structured Product Labeling (SPL) retrieved through openFDA. We identified 48 clinical label sets within the page’s selected clinical scope after exact ingredient or ingredient-combination matching and applicable route/form matching. Forms, routes, brands, labelers, strengths, and NDC product-record counts are built separately from matching FDA National Drug Code Directory records. The linked DailyMed document is a representative official source for verification, not the page’s only clinical source. View the linked label on DailyMed →
Terbinafine is an antifungal that blocks an enzyme fungi need for their cell membranes, used as tablets for nail fungus and as creams and sprays for athlete's foot, jock itch and ringworm; on the market since about 1992 and available as a generic, the tablets are a usual first choice. Most people tolerate it well, with headache and an upset stomach the usual complaints, but report any change in taste or smell, which can be permanent. The tablets' serious risk is liver failure, even in people with healthy livers, so expect blood tests before and during treatment and call promptly for dark urine or yellowing skin or eyes.
Clinical pearls
- Nails grow slowly, so toenails can still look abnormal after the course ends; clear new growth from the base is the good sign.
- Terbinafine can raise levels of many antidepressants, beta-blockers and flecainide, and with desipramine the effect lasted weeks after stopping.
- If you take warfarin, ask about extra INR (clotting blood test) checks, since clotting times have changed with terbinafine tablets.
- Keep applying the cream or spray for the full time on the label, even after the itching stops.
Patient information guide A plain-language walkthrough of Terbinafine, written from its FDA label.
What Terbinafine is used for
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Terbinafine is used for fungal infections, and the use depends on the product.
- Terbinafine tablets (oral): fungal infection of the toenail or fingernail due to dermatophytes (onychomycosis).
- Lamisil AT spray and creams (topical): most athlete’s foot, jock itch and ringworm, plus itching, burning, cracking and scaling.
- CVS cream: jock itch.
- Toenail Fungus Treatment (topical liquid): nail fungus, discoloration, thickening, splitting, crumbling and brittleness.
For Lamisil AT spray, effectiveness on the bottom or sides of the foot is unknown.
How Terbinafine works
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Terbinafine is an allylamine antifungal. It blocks squalene epoxidase, an enzyme fungi use to build ergosterol, which is an essential part of their cell membrane.
Blocking this enzyme lets squalene build up inside the fungus. This makes the membrane leaky and leads to fungal cell death.
Terbinafine dosage
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Terbinafine tablets are taken by mouth once daily, with or without food. Fingernail infections are treated for about 6 weeks and toenail infections for about 12 weeks. Your nail may take months after treatment ends to look healthy, because the healthy nail has to grow out.
- Topical creams and sprays go on clean, dry skin.
- Athlete’s foot is generally treated twice a day. Jock itch and ringworm are generally treated once a day.
- Treatment usually lasts 1 to 2 weeks, depending on the area treated.
- Wash your hands after each use.
Follow your prescriber’s directions and the product label.
Dosing details from the FDA-approved label
From the Terbinafine prescribing information (“Dosage and Administration”). Doses are set by your prescriber for your product, condition, kidney function and age — never change a dose on your own.
- Fingernail onychomycosis (oral tablet)
- One 250 mg tablet once daily for 6 weeks
- Evaluate patients for evidence of chronic or active liver disease before administering
- Toenail onychomycosis (oral tablet)
- One 250 mg tablet once daily for 12 weeks
- Evaluate patients for evidence of chronic or active liver disease before administering
- Athlete's foot between the toes, adults and children 12 years and older (topical cream)
- Apply twice a day (morning and night) for 1 week or as directed by a doctor
- Wear well-fitting, ventilated shoes; change shoes and socks at least once daily
- Athlete's foot on the bottom or sides of the foot, adults and children 12 years and older (topical cream)
- Apply twice a day (morning and night) for 2 weeks or as directed by a doctor
- Wear well-fitting, ventilated shoes; change shoes and socks at least once daily
- Jock itch and ringworm, adults and children 12 years and older (topical cream)
- Apply once a day (morning or night) for 1 week or as directed by a doctor
- Athlete's foot between the toes, adults and children 12 years and over (topical spray)
- Spray twice a day (morning and night) for 1 week or as directed by a doctor
- Hold can 4" to 6" from skin; wear well-fitting, ventilated shoes
- Jock itch and ringworm, adults and children 12 years and over (topical spray)
- Spray affected area once a day (morning or night) for 1 week or as directed by a doctor
- Children under 12 years (topical products)
- Ask a doctor
Read the label’s full dosing text
2. DOSAGE AND ADMINISTRATION • Prior to administering, evaluate patients for evidence of chronic or active liver disease. ( 2.1 ) • Fingernail onychomycosis: One 250 mg tablet, once daily for 6 weeks. ( 2.2 ) • Toenail onychomycosis: One 250 mg tablet, once daily for 12 weeks. ( 2.2 ) 2.1 Assessment Prior to Initiation Before administering Terbinafine tablets, evaluate patients for evidence of chronic or active liver disease [see Contraindications (4) and Warnings and Precautions (5.1) ] . 2.2 Dosage Fingernail onychomycosis: One 250 mg tablet once daily for 6 weeks. Toenail onychomycosis: One 250 mg tablet once daily for 12 weeks. The optimal clinical effect is seen some months after mycological cure and cessation of treatment. This is related to the period required for outgrowth of healthy nail.
Read the full Dosage and Administration section on DailyMed →
Terbinafine side effects
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Most side effects of the tablets are mild and short-lived. Common ones include:
Common side effects
- Headache
- Diarrhea
- Rash
- Indigestion (dyspepsia)
- Itching
- Nausea
- Stomach pain
- Taste changes
- Gas
- Liver test changes
When to get medical help
- Call your doctor right away if you have ongoing nausea, poor appetite, unusual tiredness, vomiting, pain in the upper right belly, yellow skin or eyes, dark urine or pale stools. These can be signs of liver problems.
- Tell your doctor if you notice a change in or loss of taste or smell. It can be long-lasting or permanent.
- Report new low mood or depressive symptoms.
- Get medical help for a spreading or worsening skin rash, blistering or peeling skin, or fever with rash. These can be serious skin reactions.
- Seek urgent help for signs of a severe allergic reaction, such as swelling of the face or throat or trouble breathing.
- Tell your doctor about signs of infection, such as fever or sore throat, since severe low white blood cell counts (neutropenia) have been reported.
- Tell your doctor if a lupus-like illness or a flare of existing lupus develops.
Terbinafine warnings and precautions
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- Liver failure: it has occurred with terbinafine tablets, sometimes leading to transplant or death. Watch for ongoing nausea, tiredness, vomiting, right upper belly pain, jaundice, dark urine or pale stools.
- Taste or smell loss: it can be severe and may last more than a year or be permanent.
- Depressive symptoms: report any to your doctor.
- Low white blood cells: severe neutropenia has been reported.
- Serious skin reactions: these include Stevens-Johnson syndrome and DRESS.
- Lupus: terbinafine can trigger or worsen lupus erythematosus.
- Blood clotting disorders: thrombotic microangiopathy has been reported, some cases fatal.
Terbinafine interactions
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Terbinafine tablets can change levels of other medicines, and some medicines change terbinafine levels.
- CYP2D6-processed drugs (tricyclic antidepressants, SSRIs, beta-blockers, flecainide, propafenone, MAO-B inhibitors): terbinafine blocks their breakdown, so doses may need lowering.
- Desipramine: levels rose about 5-fold and stayed high for weeks.
- Fluconazole, ketoconazole, amiodarone: may raise terbinafine levels.
- Cimetidine: raises terbinafine levels.
- Rifampin: speeds terbinafine clearance, lowering levels.
- Warfarin: clotting time changes have been reported.
- Caffeine: clearance is slightly reduced.
Interactions listed in the FDA-approved label
From the Terbinafine prescribing information (“Drug Interactions”): what the manufacturer studied or reported to the FDA.
- Drugs metabolized by CYP450 2D6 (tricyclic antidepressants, SSRIs, beta-blockers, class 1C antiarrhythmics e.g. flecainide and propafenone, MAO inhibitors Type B): Terbinafine is an inhibitor of the CYP450 2D6 isozyme and may convert extensive CYP2D6 metabolizers to poor metabolizer status. Coadministration should be done with careful monitoring and may require a reduction in dose of the 2D6-metabolized drug.
- Desipramine: Terbinafine resulted in a 2-fold increase in Cmax and a 5-fold increase in AUC of desipramine, persisting at 4 weeks after discontinuation.
- Dextromethorphan: Terbinafine increases the dextromethorphan/dextrorphan metabolite ratio in urine by 16- to 97-fold on average.
- Caffeine: Terbinafine decreases the clearance of caffeine by 19%.
- Cyclosporine: Terbinafine increases the clearance of cyclosporine by 15%; terbinafine clearance is unaffected by cyclosporine.
- Fluconazole: A single 100 mg dose of fluconazole with terbinafine increased terbinafine Cmax by 52% and AUC by 69%.
- Other inhibitors of both CYP2C9 and CYP3A4 (e.g., ketoconazole, amiodarone): May also lead to a substantial increase in the systemic exposure (Cmax and AUC) of terbinafine.
- Warfarin: Spontaneous reports of increase or decrease in prothrombin times with oral terbinafine; a causal relationship has not been established.
- Rifampin: Terbinafine clearance is increased 100% by rifampin, a CYP450 enzyme inducer.
- Cimetidine: Terbinafine clearance is decreased 33% by cimetidine, a CYP450 enzyme inhibitor.
Read the label’s full interactions text
7. DRUG INTERACTIONS Terbinafine is an inhibitor of CYP450 2D6 isozyme and has an effect on metabolism of desipramine. Drug interactions have also been noted with cimetidine, fluconazole, cyclosporine, rifampin, and caffeine. ( 7.1 ) 7.1 Drug-Drug Interactions In vivo studies have shown that terbinafine is an inhibitor of the CYP450 2D6 isozyme. Drugs predominantly metabolized by the CYP450 2D6 isozyme include the following drug classes: tricyclic antidepressants, selective serotonin reuptake inhibitors, beta-blockers, antiarrhythmics class 1C (e.g., flecainide and propafenone) and monoamine oxidase inhibitors Type B. Coadministration of Terbinafine tablets should be done with careful monitoring and may require a reduction in dose of the 2D6-metabolized drug. In a study to assess the effects of terbinafine on desipramine in healthy volunteers characterized as normal metabolizers, the administration of terbinafine resulted in a 2-fold increase in C max and a 5-fold increase in area under the curve (AUC). In this study, these effects were shown to persist at the last observation at 4 weeks after discontinuation of Terbinafine tablets. In studies in healthy subjects characterized as extensive metabolizers of dextromethorphan (antitussive drug and CYP2D6 probe substrate), terbinafine increases the dextromethorphan/ dextrorphan metabolite ratio in urine by 16- to 97-fold on average. Thus, terbinafine may convert extensive CYP2D6 metabolizers to poor metabolizer status. In vitro studies with human liver microsomes showed that terbinafine does not inhibit the metabolism of tolbutamide, ethinylestradiol, ethoxycoumarin, cyclosporine, cisapride and fluvastatin. In vivo drug-drug interaction studies conducted in healthy volunteer subjects showed that terbinafine does not affect the clearance of antipyrine or digoxin. Terbinafine decreases the clearance of caffeine by 19%. Terbinafine increases the clearance of cyclosporine by 15%.
Excerpted — the section continues on the label. Read the full Drug Interactions section on DailyMed →
Not a complete list. The label covers the interactions the manufacturer studied or reported, and our own interaction database does not cover every medicine either. Bring your full medication list, including vitamins and herbal products, to your pharmacist.
Before taking Terbinafine
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- Do not use the tablets with chronic or active liver disease or a past allergic reaction to oral terbinafine.
- Liver tests are done before and during treatment.
- Tell your doctor if you have a weakened immune system or kidney problems.
- Pregnancy: human data are insufficient to judge risk.
- Breastfeeding: terbinafine passes into breast milk.
- Children: the tablets have not been established as safe and effective for nail infection. Ask a doctor before using topical products under age 12.
- Older adults: dosing should be cautious because of reduced organ function.
Terbinafine overdose
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Experience with overdose is limited. Doses up to 5 grams, about 20 times the daily dose, were taken without serious reactions. Symptoms included nausea, vomiting, stomach pain, dizziness, rash, frequent urination and headache.
How your body processes Terbinafine
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Terbinafine tablets are well absorbed, though first-pass metabolism leaves about 40% available. Levels peak within about 2 hours, and food changes absorption only slightly. The drug is heavily protein-bound and spreads to the skin and oil glands. It lingers in skin and fat, with a terminal half-life of 200 to 400 hours.
The liver breaks it down with several CYP enzymes, and about 70% leaves in the urine. Clearance drops by about half in kidney impairment or liver cirrhosis.
How to store Terbinafine
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Store Terbinafine Tablets, USP at 20° - 25°C (68° - 77°F) .
Written from the FDA-approved label with AI and reviewed by our pharmacy team. How we use AI →
Supplements & herbs that interact with Terbinafine
72 supplements and herbal products have documented interactions with Terbinafine in the licensed clinical database we use. Most are manageable — but your pharmacist should know about everything you take, including vitamins and herbals.
- Major · 4
- Moderate · 45
- Minor · 23
Educational information from a licensed clinical database (Natural Medicines) — see our data sources & update cadence. Not medical advice: an interaction being documented does not mean it will happen to you; do not start or stop medications or supplements without professional guidance.
Terbinafine: pharmacist answers to common questions
Quick, plain-English answers to the questions patients ask most about Terbinafine — the kind of thing our pharmacy team would talk through with you at the counter.
What is terbinafine used for?
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How do I take the tablets?
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Why do I need liver blood tests?
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What side effects are common, and which need a call?
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Does terbinafine interact with my other medicines?
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Is it safe in pregnancy or while breastfeeding?
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Is Terbinafine available over the counter?
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When was Terbinafine first available?
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Who makes Terbinafine?
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Answers drafted from the FDA-approved label with AI and reviewed by our pharmacy team. How we use AI →
More about Terbinafine on HelloPharmacist
Terbinafine forms and strengths (how it comes)
Terbinafine is available in 4 forms. Different forms and brands can have different approved uses, doses, schedules, and directions. Follow the instructions for your exact product, and do not switch forms without guidance from your prescriber or pharmacist.
Need a version that does not list lactose, a gluten source, a dye or gelatin? Inactive ingredients differ by manufacturer: see Terbinafine inactive ingredients by manufacturer.
Tablet
How this form is used
- Terbinafine tablets treat fungal infection of the toenail or fingernail due to dermatophytes (onychomycosis).
- Terbinafine tablets require lab confirmation of the nail infection before starting.
- Terbinafine tablets are taken once daily, with or without food.
- Terbinafine tablets are used for a shorter course for fingernails than for toenails.
- Terbinafine tablets call for a liver check before starting.
Topical cream, ointment or gel
How this form is used
- Athletes Foot, Curist, Antifungal and Athlete Foot Cream products cure most athlete’s foot, jock itch and ringworm.
- Cvs cream is labeled for jock itch and for relieving itching, burning, cracking and scaling.
- Athletes Foot and Curist creams are for adults and children 12 and older. Ask a doctor for children under 12.
- Athletes Foot cream is applied to clean, dry skin. Use it twice daily for athlete’s foot and once daily for jock itch and ringworm.
- Athletes Foot cream users should wash their hands after each use.
Topical spray
How this form is used
- Lamisil AT spray cures most athlete’s foot between the toes, jock itch and ringworm.
- Lamisil AT spray relieves itching, burning, cracking and scaling.
- Lamisil AT spray is for adults and children 12 and older. Ask a doctor for children under 12.
- Lamisil AT spray goes on clean, dry skin, held 4 to 6 inches away.
- Lamisil AT spray is used twice daily for athlete’s foot and once daily for jock itch and ringworm.
Topical solution
How this form is used
- Toenail Fungus Treatment liquid is for nail fungus, discoloration, thickening, splitting, crumbling and brittleness.
Terbinafine on the U.S. market: products, makers and brands
How Terbinafine appears in the FDA’s National Drug Code Directory — including its dosage forms, strengths, brand names, manufacturers, and FDA-listed product records. These are directory records, not sales or prescription volume.
41 companies list 75 Terbinafine product records with the FDA, mostly as tablet, topical cream, ointment or gel, topical spray; the earliest marketing or approval year on record is 1992. Brand names on the directory include Lamisil, Silka Cream, Athletes Foot and 13 more; the rest are generics.
FDA-listed product records by dose form (tablet variants merged) — FDA National Drug Code Directory. Record counts are not sales or prescription volume.
Also listed with the FDA, not a patient dose form: Powder (27) — bulk drug substance sold to compounders/manufacturers and multi-item kits. These aren’t counted in the dose-form total above.
Share of FDA-listed product records by manufacturer — FDA National Drug Code Directory. Record counts are not sales or prescription volume.
How widely Terbinafine is used (Medicaid data)
A general measure of how commonly Terbinafine is prescribed, based on Medicaid — one of the largest public drug programs. The figure below is prescriptions filled in Q1–Q4 2025, summed across every form and brand of the drug.
Think of this as a proxy for how widely Terbinafine is used, drawn from freely available public data. Medicaid is just one program — these numbers don’t include Medicare, other government coverage, or commercial and cash-pay prescriptions, so real-world use is higher than what’s shown here.
How commonly is Terbinafine prescribed? Of the 1,601 medications we measure, Terbinafine ranks #269 by Medicaid prescriptions — more than 83% of them.
Utilization by Terbinafine product
Pick a product to see its own Medicaid numbers. Each chip is one clinical product — a specific strength & dosage form as defined by RxNorm — with brand-name and generic versions combined.
terbinafine 250 MG Oral Tablet Most dispensed
Summed across the 9 of 194 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 313222
terbinafine hydrochloride 10 MG/ML Topical Cream
Summed across the 6 of 63 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 992528
Shares are of the Medicaid prescriptions shown here. Product grouping follows RxNorm (the National Library of Medicine’s drug terminology), so “one product” means one strength & dosage form regardless of manufacturer. Dollar figures are gross Medicaid reimbursement before mandatory rebates — rebates (often large, especially for brand-name drugs) are confidential, so actual net cost to Medicaid is lower than shown.
Source: Medicaid State Drug Utilization Data (CMS), aggregated by generic ingredient — summed across every NDC (all brands, strengths, salt forms and dosage forms) of Terbinafine, and across all states and both fee-for-service and managed-care claims. A general popularity signal; it excludes Medicare, commercial insurance and cash prescriptions, so it is not total U.S. use. Based on the 15 of 257 listed Terbinafine NDCs with Medicaid activity.
Compare Terbinafine products
A representative set of FDA-listed product records for Terbinafine — across manufacturers, strengths, and dosage forms, grouped by form with each product’s manufacturer and how the FDA approved it. The same medicine may be made and packaged by different companies, so a single drug can have many directory entries. (It’s also why a refill can look different — a new shape, color, or box — even though it contains the same medication.)
| Strength | Route | Manufacturer / Labeler | Category ⓘ | Details |
|---|---|---|---|---|
| 💊Tablet | ||||
| 250 mg | Oral | A-S Medication Solutions × 4 listings | ANDA | View NDC → |
| 250 mg | Oral | American Health Packaging | ANDA | View NDC → |
| 250 mg | Oral | Amerisyn LLC | ANDA | View NDC → |
| 250 mg | Oral | Amici Pharma, Inc. | ANDA | View NDC → |
| 250 mg | Oral | Aphena Pharma Solutions - Tennessee, LLC | ANDA | View NDC → |
| 250 mg | Oral | Aurobindo Pharma Limited | ANDA | View NDC → |
| 250 mg | Oral | Bionpharma Inc. | ANDA | View NDC → |
| 250 mg | Oral | Breckenridge Pharmaceutical, Inc. | ANDA | View NDC → |
| 250 mg | Oral | Bryant Ranch Prepack × 5 listings | ANDA | View NDC → |
| 250 mg | Oral | Chartwell RX, LLC | ANDA | View NDC → |
| 250 mg | Oral | Cipla USA Inc. × 2 listings | ANDA | View NDC → |
| 250 mg | Oral | direct rx | ANDA | View NDC → |
| 250 mg | Oral | Dr.Reddys Laboratories Limited | ANDA | View NDC → |
| 250 mg | Oral | Exelan Pharmaceuticals Inc. | ANDA | View NDC → |
| 250 mg | Oral | Golden State Medical Supply, Inc. × 2 listings | ANDA | View NDC → |
| 250 mg | Oral | NorthStar Rx LLC | ANDA | View NDC → |
| 250 mg | Oral | Northwind Health Company, LLC | ANDA | View NDC → |
| 250 mg | Oral | NuCare Pharmaceuticals,Inc. × 4 listings | ANDA | View NDC → |
| 250 mg | Oral | PD-Rx Pharmaceuticals, Inc. × 2 listings | ANDA | View NDC → |
| 250 mg | Oral | Preferred Pharmaceuticals, Inc. | ANDA | View NDC → |
| 250 mg | Oral | Proficient Rx LP × 4 listings | ANDA | View NDC → |
| TERBINAFINE HYDROCHLORIDE 250 1 | Oral | Proficient Rx LP | ANDA | View NDC → |
| 250 mg | Oral | Remedyrepack Inc. × 4 listings | ANDA | View NDC → |
| 💊Topical cream, ointment or gel | ||||
| 1 g/100 g | Topical | A-S Medication Solutions × 2 listings | ANDA | View NDC → |
| 1 g/100 g | Topical | AmerisourceBergen | ANDA | View NDC → |
| 1 g/100 g | Topical | Beautivity LLC | OTC MONOGRAPH DRUG | View NDC → |
| 1 g/100 g | Topical | Cardinal Health, 110 dba LEADER | ANDA | View NDC → |
| 1 g/100 g | Topical | CVS Pharmacy × 2 listings | ANDA | View NDC → |
| 1 g/100 g | Topical | Genomma Lab USA, Inc. × 2 listings | ANDA | View NDC → |
| 1 g/100 g | Topical | H E B | ANDA | View NDC → |
| 1 g/100 g | Topical | Karo Healthcare Inc. × 3 listings | NDA | View NDC → |
| 1 g/100 g | Topical | Kroger Company | ANDA | View NDC → |
| 1 g/100 g | Topical | Little Pharma, Inc. | ANDA | View NDC → |
| 1 g/100 g | Topical | Meijer Distribution Inc | ANDA | View NDC → |
| 1 g/100 g | Topical | Preferred Pharmaceuticals, Inc | ANDA | View NDC → |
| 1 g/100 g | Topical | Preferred Pharmaceuticals Inc. | ANDA | View NDC → |
| 1 g/100 g | Topical | Proficient Rx LP | ANDA | View NDC → |
| 1 g/100 g | Topical | Publix Super Markets Inc. | ANDA | View NDC → |
| 1 g/100 g | Topical | Rite Aid Corporation | ANDA | View NDC → |
| 1 g/100 g | Topical | Scholl's Wellness Company LLC | ANDA | View NDC → |
| 1 g/100 g | Topical | Strategic Sourcing Services Llc | ANDA | View NDC → |
| 1 g/100 g | Topical | Sun Pharmaceutical Industries, Inc. × 2 listings | ANDA | View NDC → |
| 1 g/100 g | Topical | Voyant Beauty, Inc. | NDA | View NDC → |
| 1 g/100 g | Topical | Voyant Beauty Inc. | NDA | View NDC → |
| 1 g/100 g | Topical | Wal-Mart Stores Inc | ANDA | View NDC → |
| 1 g/100 g | Topical | Walgreen Company × 2 listings | ANDA | View NDC → |
| 💊Topical solution | ||||
| 0.01 g/mL | Topical | Shenzhen Wankelai E-commerce Co., Ltd. | OTC MONOGRAPH DRUG | View NDC → |
| 💊Topical spray | ||||
| 1 g/100 g | Topical | Karo Healthcare Inc. × 2 listings | NDA | View NDC → |
Showing 75 of 75 products — FDA National Drug Code Directory. See every product, package size and price: browse all 75 Terbinafine NDCs →
Terbinafine side effects reported to the FDA (FAERS)
After a medicine reaches the market, patients, doctors and drugmakers can send the FDA reports of problems they think may be linked to it. Here’s what’s been reported for Terbinafine — a signal of what to watch for, not proof the drug caused it.
Source: openFDA, from the FDA Adverse Event Reporting System (FAERS). These are voluntary reports — they don’t prove the drug caused the effect, and counts reflect how often something was reported, not how often it actually happens. Reports also often name the very problem the medicine is taken for — a common reason to file one is that the drug didn’t help — so for a pain reliever you may see “pain” high on the list; that points to why the report was filed, not to the drug causing the symptom. This counts every report that lists Terbinafine in any role, so the total runs higher than the FDA’s official dashboard, which counts only cases where the drug is the suspect. For the authoritative figures, see the FDA FAERS Public Dashboard. Always talk to your pharmacist or doctor.
Terbinafine FDA approval history
How Terbinafine went from FDA review to the pharmacy shelf — the key milestones in its regulatory journey.
Source: Drugs@FDA.
Terbinafine recall history
A recall is when a specific batch of a medicine is pulled from the market — usually a manufacturing issue, not a problem with the drug itself. Class I is most serious, Class III least.
The FDA’s enforcement reports list no Terbinafine recalls since July 2021.
✅No Terbinafine recalls on record since July 2021Source: FDA enforcement (recall) reports, via openFDA; our copy was last updated Sep 24, 2026.
RxNorm Concept Web — From Ingredient to Every Form and Strength
This page starts with one ingredient concept (IN). The branches below show its dose-form concepts (SCDF), then the available clinical drug and strength concepts (SCD). Combination products remain separate concepts with their own pages.
RxCUI 37801 5 dose forms · 5 strengths
-
Dose form (SCDF) Oral Tablet RxCUI 374036In current FDA listingsClinical drug / strength (SCD) 250 MGRxCUI 313222 -
Dose form (SCDF) Topical Cream RxCUI 377935In current FDA listingsClinical drug / strength (SCD) hydrochloride 10 MG/MLRxCUI 992528 -
Dose form (SCDF) Topical Gel RxCUI 451963In current FDA listingsClinical drug / strength (SCD) 0.01 MG/MGRxCUI 415685 -
Dose form (SCDF) Topical Solution RxCUI 374035In current FDA listingsClinical drug / strength (SCD) hydrochloride 10 MG/MLRxCUI 992531 -
Dose form (SCDF) Topical Spray RxCUI 385102In current FDA listingsClinical drug / strength (SCD) hydrochloride 10 MG/MLRxCUI 992535
Look up RxCUI 37801 in the RxCUI Atlas →
RxNorm is the U.S. National Library of Medicine’s normalized drug vocabulary. Its concept hierarchy can include forms that are not currently marketed; the status on each branch compares that concept with current FDA listings. RxCUIs identify vocabulary concepts, not individual packages or manufacturers.
Terbinafine supply and shortage status
Whether Terbinafine is in short supply in the U.S. right now, plus any shortage history the FDA has on record. A shortage usually reflects a manufacturing or demand issue — not a safety problem with the drug.
Source: openFDA, from the FDA Drug Shortages database.
💵 What Terbinafine costs pharmacies (NADAC benchmark)
The national average invoice price pharmacies pay for the drug itself, from CMS's NADAC survey (data as of Sep 30, 2026). This is a supply-cost benchmark — not a retail price and not what you'd pay at the counter.
| Form | Strength | Pharmacy acquisition benchmark | |
|---|---|---|---|
| Tablet · Oral | 250 mg | $0.143 per tablet | NDC details & price history |
| Tablet · Oral | 250 1-Jan | $0.143 per tablet | NDC details & price history |
Source: CMS National Average Drug Acquisition Cost (NADAC), a survey of retail pharmacy invoice prices. Benchmarks shown are the range across package sizes of a representative product for each form and strength — other manufacturers' products may differ.
Terbinafine brand names
Terbinafine is sold under 16 brand names in the FDA directory — Lamisil, Silka Cream, Athletes Foot, Lamisil AT Cream and others. A brand and its generic contain the same active ingredient; the brand name belongs to one company's product.
Who makes Terbinafine: manufacturers and labelers
41 companies list Terbinafine products with the FDA. By number of product records, the largest are A-S Medication Solutions, Proficient Rx LP, Bryant Ranch Prepack. Labelers include manufacturers and repackagers; the product in your bottle depends on which one your pharmacy stocks.
…and 17 more on the FDA NDC directory.
Terbinafine drug class (RxNorm)
Terbinafine belongs to the Allylamine Antifungal class.
Classified by RxNorm RxClass — the U.S. National Library of Medicine's standardized drug-classification service (Established Pharmacologic Class from the FDA, the ATC drug family from the WHO, and mechanism of action). Reference only, not medical advice.
Sources for this Terbinafine page
Core label, product, RxNorm, safety, and utilization data on this page come from the sources identified below. AI-written, editorial, and licensed sections are labeled separately.
How this page is built
HelloPharmacist combines public FDA and NLM records and does not author the underlying clinical facts. The plain-language sections are written with AI from the FDA-approved label text and reviewed by our pharmacy team before publication. Exelan Pharmaceuticals Inc. is the representative DailyMed label linked for verification and dates. This is general education, not medical advice: always talk to your doctor or pharmacist about your own medicines. How we build and review drug pages →