Cat · Felis catus · typical adult weight 2.50–7.00 kg
Griseofulvin is dosed at 25–50 mg/kg PO q12-24h in cats, per Verified against Muller & Kirk's Small Animal Dermatology, 7th Ed, p.239 (2026-08-01). — LOCATOR CONVENTION 2026-08-07: the bare 'p.239' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.227; verified by finding the drug named there. If you are holding the book, turn to p.227. — SOURCE EDITION: Muller & Kirk's Small Animal Dermatology — ISBN 9781416000280, https://openlibrary.org/isbn/9781416000280. Griseofulvin is used in cats for Dermatophytosis. Routes documented in cats: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Griseofulvin in cats, 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 | Moderate | Verified against Muller & Kirk's Small Animal Dermatology, 7th Ed, p.239 (2026-08-01). — LOCATOR CONVENTION 2026-08-07: the bare 'p.239' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.227; verified by finding the drug named there. If you are holding the book, turn to p.227. — SOURCE EDITION: Muller & Kirk's Small Animal Dermatology — ISBN 9781416000280, https://openlibrary.org/isbn/9781416000280 |
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 formulation: 25 mg/kg q12h, 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.
Need the exact dose for your patient?
These ranges are per kg. Enter your cat's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
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 cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Griseofulvin dose range in cats, 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 cats: PO.
Cited course lengths for Griseofulvin in cats 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 cats for: Dermatophytosis.
These are general warnings for Griseofulvin across species; consult the cat 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 cats — 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.