Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Voriconazole is dosed at 3–4 mg/kg PO q12h in dogs, per Graupmann-Kuzma A, Valentine BA, Shubitz LF, Dial SM, Watrous B, Tornquist SJ. Coccidioidomycosis in dogs and cats: A review. J Am Anim Hosp Assoc. 2008;44:226-235. doi:10.5326/0440226 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1343 (2026-08-01).. Voriconazole is used in dogs for Aspergillosis (nasal and disseminated). Routes documented in dogs: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Voriconazole in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Vfend
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 3–4 mg/kg | q12h | Long-term (months) | Aspergillosis (nasal and disseminated) | Moderate | Graupmann-Kuzma A, Valentine BA, Shubitz LF, Dial SM, Watrous B, Tornquist SJ. Coccidioidomycosis in dogs and cats: A review. J Am Anim Hosp Assoc. 2008;44:226-235. doi:10.5326/0440226 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1343 (2026-08-01). |
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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 fungal CYP51 (lanosterol 14-alpha-demethylase), blocking ergosterol synthesis. Broader spectrum than fluconazole including Aspergillus.
Drug of choice for aspergillosis. Hepatotoxic — monitor liver enzymes. Many CYP-mediated drug interactions. Visual disturbances in humans. Non-linear pharmacokinetics in some species.
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Voriconazole dose range in dogs, with cited source references: PO 3–4 mg/kg q12h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Voriconazole in dogs: PO.
Cited course lengths for Voriconazole in dogs include: Long-term (months). Duration depends on the indication — match it to the specific dose rule in the table above.
Voriconazole is indicated in dogs for: Aspergillosis (nasal and disseminated).
These are general warnings for Voriconazole across species; consult the dog dosing table above for species-specific guidance. Drug of choice for aspergillosis. Hepatotoxic — monitor liver enzymes. Many CYP-mediated drug interactions. Visual disturbances in humans. Non-linear pharmacokinetics in some species.
Why a species-specific page? Voriconazole 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.