Cat · Felis catus · typical adult weight 2.50–7.00 kg
Liothyronine is used in cat for Hypothyroidism (iatrogenic, post-I-131). Routes documented in cat: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Liothyronine in cat, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Cytomel
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 4–6 mcg/kg | q8-12h | May be temporary post-I-131; reassess at 3-6 months | Hypothyroidism (iatrogenic, post-I-131) | 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.
Synthetic triiodothyronine (T3) that directly activates thyroid hormone receptors, increasing basal metabolic rate, protein synthesis, and oxygen consumption.
Short half-life requires multiple daily doses. Narrow therapeutic index. Used when levothyroxine alone is insufficient. Monitor thyroid levels.
Species-specific contraindications and adverse-reaction reports for cat may differ from canine / feline reference data — consult the primary citations listed with each rule.
Why a species-specific page? Liothyronine 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.