Cat · Felis catus · typical adult weight 2.50–7.00 kg
Fentanyl is used in cat for Post-operative pain. Routes documented in cat: TRANSDERMAL. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Fentanyl in cat, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Duragesic, Sublimaze
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| TRANSDERMAL | 2–4 mcg/kg/h | q72h (patch replacement) | 72h per patch | Post-operative pain | Moderate | 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.
Potent synthetic mu-opioid receptor agonist (50-100x more potent than morphine). Rapid onset, short duration IV. Transdermal provides sustained release over 72 hours.
Potent respiratory depressant. Transdermal patch: 12-24 hour onset, variable absorption (shave area, do not cut patches). Controlled substance (Schedule II). Bradycardia. Fever increases absorption rate.
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? Fentanyl 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.