Thiamine for Cat
Cat · Felis catus · typical adult weight 2.50–7.00 kg
Thiamine is used in cat for Thiamine deficiency (neurological signs). Routes documented in cat: IM. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Thiamine in cat, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Vitamin B1
Dose ranges
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IM | 25–50 mg per cat | q24h | 3-5 days | Thiamine deficiency (neurological signs) | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
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.
Mechanism of action
Essential cofactor for pyruvate dehydrogenase, alpha-ketoglutarate dehydrogenase, and transketolase in energy metabolism. Critical for neurological function.
Side effects & warnings
Deficiency causes polioencephalomalacia in ruminants and neurological signs in cats (fish-based diets, cooked meat diets). IV thiamine can cause anaphylaxis — give IM or slow IV. Very safe orally.
Species-specific contraindications and adverse-reaction reports for cat may differ from canine / feline reference data — consult the primary citations listed with each rule.
Other Supplement drugs with cat dosing
Thiamine dosing in other species
Why a species-specific page? Thiamine pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in cat — 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.