Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Fentanyl is used in dog for Intraoperative analgesia, CRI, Chronic pain (post-operative). Routes documented in dog: IV, TRANSDERMAL. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 2 cited dose rules for Fentanyl in dog, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Duragesic, Sublimaze
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IV | 2–10 mcg/kg/h | CRI | Duration of surgery/recovery | Intraoperative analgesia, CRI | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
| TRANSDERMAL | 2–5 mcg/kg/h | q72h (patch replacement) | 72h per patch | Chronic pain (post-operative) | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
One of the cited rules is a continuous-rate-infusion regimen: IV 2–10 mcg/kg/h CRI. CRI regimens are delivered as a continuous infusion rather than discrete doses — verify the rate against the cited source before use.
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These ranges are per kg. Enter your dog'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 dog 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 dog — 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.