Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Griseofulvin is dosed at 25–50 mg/kg PO q12-24h in dogs, per Papich MG. Saunders Handbook of Veterinary Drugs: Small and Large Animal, 4th ed. (Elsevier, 2016), Griseofulvin, printed p.368 (corpus PDF p.396), Small Animal Dosage — Dogs, Microsize: '25 mg/kg q12h PO, up to a maximum dose of 50-60 mg/kg q12h'. Instructions for Use, same monograph: 'Consider 25 mg/kg q12h initially, and then increase to 50-60 mg/kg q12h for problem cases.' — SOURCE EDITION: Saunders Handbook of Veterinary Drugs — ISBN 9780323244855, https://openlibrary.org/isbn/9780323244855. Griseofulvin is used in dogs for Dermatophytosis (ringworm). Routes documented in dogs: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Griseofulvin in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Fulvicin, Grisovin
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 25–50 mg/kg | q12-24h | 4-8 weeks minimum | Dermatophytosis (ringworm) | Weak | Papich MG. Saunders Handbook of Veterinary Drugs: Small and Large Animal, 4th ed. (Elsevier, 2016), Griseofulvin, printed p.368 (corpus PDF p.396), Small Animal Dosage — Dogs, Microsize: '25 mg/kg q12h PO, up to a maximum dose of 50-60 mg/kg q12h'. Instructions for Use, same monograph: 'Consider 25 mg/kg q12h initially, and then increase to 50-60 mg/kg q12h for problem cases.' — SOURCE EDITION: Saunders Handbook of Veterinary Drugs — ISBN 9780323244855, https://openlibrary.org/isbn/9780323244855 |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 25 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.396 | • Microsize: 25 mg/kg q12h PO, up to a maximum dose of 50-60 mg/kg q12h. |
| 50–60 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.396 | • Microsize: 25 mg/kg q12h PO, up to a maximum dose of 50-60 mg/kg q12h. |
| 30 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.396 | • Ultramicrosize: 30 mg/kg/day in divided treatments PO. |
Figures are transcribed from the cited page or table of each held edition and are shown for reference only. They are not dose recommendations, they do not feed the calculator, and none has been reviewed by a veterinarian.
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Inhibits fungal mitosis by disrupting mitotic spindle microtubules. Deposits in keratin precursor cells, preventing fungal invasion of new growth.
TERATOGENIC — CONTRAINDICATED in pregnant animals. Bone marrow suppression (especially cats — monitor CBC). Give with fatty food (enhances absorption). Cats: FIV-positive at higher risk of toxicity. 4-8 week course minimum.
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Griseofulvin dose range in dogs, with cited source references: PO 25–50 mg/kg q12-24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Griseofulvin in dogs: PO.
Cited course lengths for Griseofulvin in dogs include: 4-8 weeks minimum. Duration depends on the indication — match it to the specific dose rule in the table above.
Griseofulvin is indicated in dogs for: Dermatophytosis (ringworm).
These are general warnings for Griseofulvin across species; consult the dog dosing table above for species-specific guidance. TERATOGENIC — CONTRAINDICATED in pregnant animals. Bone marrow suppression (especially cats — monitor CBC). Give with fatty food (enhances absorption). Cats: FIV-positive at higher risk of toxicity. 4-8 week course minimum.
Why a species-specific page? Griseofulvin 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.