Bretylium for Cat
Cat · Felis catus · typical adult weight 2.50–7.00 kg
Bretylium is used in cat for Ventricular fibrillation (refractory). Routes documented in cat: IV. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Bretylium in cat, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Bretylol
Dose ranges
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IV | 5–10 mg/kg | Once | Emergency use only | Ventricular fibrillation (refractory) | Extrapolated | 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
Adrenergic neuronal blocking agent and Class III antiarrhythmic that prolongs action potential duration and refractory period.
Side effects & warnings
Initial transient release of norepinephrine may cause hypertension. Hypotension common after bolus. Reserved for life-threatening ventricular arrhythmias.
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 Cardiovascular drugs with cat dosing
Bretylium dosing in other species
Why a species-specific page? Bretylium 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.