Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Terbinafine is dosed at 20–30 mg/kg PO q24h in dogs, per Greene CE. Infectious Diseases of the Dog and Cat, ed 3, Philadelphia, 2006, W.B. Saunders Co.. — Verified against Muller & Kirk's Small Animal Dermatology, 7th Ed, p.241 (2026-08-01).. Terbinafine is used in dogs for Dermatophytosis, Malassezia dermatitis (refractory), Localized dermatophytosis. Routes documented in dogs: PO, TOPICAL. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 3 cited dose rules for Terbinafine in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Lamisil
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 20–30 mg/kg | q24h | 21-28 days | Dermatophytosis | Strong | Greene CE. Infectious Diseases of the Dog and Cat, ed 3, Philadelphia, 2006, W.B. Saunders Co.. — Verified against Muller & Kirk's Small Animal Dermatology, 7th Ed, p.241 (2026-08-01). |
| PO | 30 mg/kg | q24h | 21-28 days | Malassezia dermatitis (refractory) | Weak | Vertloo LRV, Gettinger MR, Naiman JH, Haynes JS. Upper Airway Obstruction Due to Primary Laryngeal Blastomycosis in a Dog. J Am Anim Hosp Assoc. 2020;56(3):181. doi:10.5326/jaaha-ms-6984 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1238 (2026-08-01). |
| TOPICAL | 1% cream applied to affected areas | q12-24h | 21-28 days | Localized dermatophytosis | Moderate | Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1468 (2026-08-01). |
Need the exact dose for your patient?
These ranges are per kg. Enter your dog's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Inhibits squalene epoxidase, blocking ergosterol synthesis at an earlier step than azoles. Fungicidal.
Generally well-tolerated. May cause GI upset, hepatotoxicity (rare). Monitor liver enzymes during prolonged use.
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Terbinafine dose ranges in dogs, with cited source references: PO 20–30 mg/kg q24h; PO 30 mg/kg q24h; TOPICAL 1% cream applied to affected areas q12-24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Terbinafine in dogs: PO, TOPICAL.
Cited course lengths for Terbinafine in dogs include: 21-28 days. Duration depends on the indication — match it to the specific dose rule in the table above.
Terbinafine is indicated in dogs for: Dermatophytosis, Malassezia dermatitis (refractory), Localized dermatophytosis.
These are general warnings for Terbinafine across species; consult the dog dosing table above for species-specific guidance. Generally well-tolerated. May cause GI upset, hepatotoxicity (rare). Monitor liver enzymes during prolonged use.
Why a species-specific page? Terbinafine pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in dogs — the rules above are the citations specific to this species, not generic recommendations.
Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice.