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Terbinafine Oral

Lamisil

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Sourced from published veterinary references. Awaiting credentialed clinical reviewer — our editorial process.

Drug Class

Antifungal

Routes

PO

Indications

Dermatophytosis

Mechanism of Action

Inhibits squalene epoxidase in ergosterol synthesis. Fungicidal against dermatophytes. Concentrates in skin, nails, and hair.

Side effects & warnings

Hepatotoxicity — monitor liver enzymes. GI upset. Drug interactions (CYP2D6 inhibitor). Effective for dermatophytosis resistant to azoles. Excellent keratin concentration.

Species with Terbinafine Oral dosing data (2 dose rules)

Cat (Domestic)Dog (Domestic)

Species references:All Cat (Domestic) drugsAll Dog (Domestic) drugs

Evidence levels across 2 dose rules

Moderate×2

Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.

Backed by a published source

  • · Plumb's Veterinary Drug Handbook, 9th Ed

Sample dosing (2 of 2 cited rules)

A dog/cat sample is shown here. Cited dosing for all 2 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.

SpeciesRouteDoseFrequencyEvidenceSource
Dog (Domestic)PO20–30 mg/kgq24hModeratePlumb's Veterinary Drug Handbook, 9th Ed
Cat (Domestic)PO30–40 mg/kgq24hModeratePlumb's Veterinary Drug Handbook, 9th Ed

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