Cat · Felis catus · typical adult weight 2.50–7.00 kg
Warfarin is dosed at 0.06–0.09 mg/kg PO q24h in cats, per Plumb's Veterinary Drug Handbook, 9th Ed. Warfarin is used in cats for Arterial thromboembolism prevention. Routes documented in cats: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Warfarin in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Coumadin, Jantoven
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 0.06–0.09 mg/kg | q24h | Long-term; close monitoring essential | Arterial thromboembolism prevention | Weak | Plumb's Veterinary Drug Handbook, 9th Ed |
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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 vitamin K epoxide reductase, blocking synthesis of vitamin K-dependent clotting factors (II, VII, IX, X).
Narrow therapeutic index. Frequent PT/INR monitoring required. Numerous drug and dietary interactions. Hemorrhage is the main risk.
Species-specific contraindications and adverse-reaction reports for cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Warfarin dose range in cats, with cited source references: PO 0.06–0.09 mg/kg q24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Warfarin in cats: PO.
Cited course lengths for Warfarin in cats include: Long-term; close monitoring essential. Duration depends on the indication — match it to the specific dose rule in the table above.
Warfarin is indicated in cats for: Arterial thromboembolism prevention.
These are general warnings for Warfarin across species; consult the cat dosing table above for species-specific guidance. Narrow therapeutic index. Frequent PT/INR monitoring required. Numerous drug and dietary interactions. Hemorrhage is the main risk.
Why a species-specific page? Warfarin 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.