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Two medicines, side by side

Ketoconazole vs terbinafine

Ketoconazole and terbinafine are both labeled for fungal infections. Drugs@FDA records approvals of ketoconazole since 1981 and of terbinafine since 1992. Pharmacies paid $0.249 per gram (Ketoconazole 2% cream) and $0.143 per terbinafine HCl 250 mg tablet (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like. In FDA's classes, ketoconazole is an azole antifungal and terbinafine an allylamine antifungal.

Check it at the source: the ketoconazole FDA label on DailyMed (effective January 28, 2026); the terbinafine FDA label on DailyMed (effective October 17, 2025).

Highlights of the ketoconazole record

Ketoconazole (Nizoral) · label of January 28, 2026

Used for

From the label: indications

Ketoconazole Cream 2% is indicated for the topical treatment of tinea corporis, tinea cruris and tinea pedis caused by Trichophyton rubrum, T. mentagrophytes and Epidermophyton floccosum; in the treatment of tinea (pityriasis) versicolor caused by Malassezia furfur (Pityrosporum orbiculare); in the treatment of cutaneous candidiasis caused by Candida spp. and in the treatment of seborrheic dermatitis.

On the market

Earliest approval on file
June 12, 1981
Generic labelers
30 labelers
Pharmacy cost
$0.249 per gram

Supply and safety

Shortage
No current entry
Recalls
3

Highlights of the terbinafine record

Terbinafine (Lamisil) · label of October 17, 2025

Used for

From the label: indications

INDICATIONS AND USAGE Terbinafine tablets are indicated for the treatment of onychomycosis of the toenail or fingernail due to dermatophytes (tinea unguium). Prior to initiating treatment, appropriate nail specimens for laboratory testing [potassium hydroxide (KOH) preparation, fungal culture, or nail biopsy] should be obtained to confirm the diagnosis of onychomycosis. […]

On the market

Earliest approval on file
December 30, 1992
Generic labelers
39 labelers
Pharmacy cost
$0.143 per tablet

Supply and safety

Shortage
No current entry
Recalls
0

Source: FDA drug labels via openFDA (Ketoconazole label of January 28, 2026, Terbinafine label of October 17, 2025); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do ketoconazole and terbinafine differ on the record?

In FDA's classes, ketoconazole is an azole antifungal and terbinafine an allylamine antifungal.

Generics: ketoconazole since 1999; terbinafine since 2007 (Drugs@FDA).

KetoconazoleTerbinafine
Labeled forFungal infectionsFungal infections
Pharmacologic classAzole AntifungalAllylamine Antifungal
How it works (label)n/aTerbinafine is an allylamine antifungal [see Clinical Pharmacology (12.4) ].
Half-life (label)n/aeady-state, in comparison to a single dose, the peak concentration of terbinafine is 25% higher and plasma AUC increases by a factor of 2.5; …
Earliest approval on file (Drugs@FDA)June 12, 1981December 30, 1992
First generic approvedJune 15, 1999July 2, 2007
Generic labelers (NDC)30 labelers39 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.249 per gram (Ketoconazole 2% cream)$0.143 per tablet (Terbinafine HCl 250 mg tablet)
12-month price change-11%-5%
Boxed warningNoNo
Shortage nowNo current entryNo current entry
Recalls recorded30
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)17,2828,847
DEA schedulenonenone

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

What next?

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