Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Naltrexone is used in dog for Stereotypic/compulsive behaviors. Routes documented in dog: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Naltrexone in dog, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Trexonil, ReVia
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 1–2 mg/kg | q12h | Variable | Stereotypic/compulsive behaviors | Weak | Plumb's Veterinary Drug Handbook, 9th Ed |
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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.
Long-acting competitive opioid receptor antagonist. Oral bioavailability and longer half-life than naloxone.
Used for stereotypic/compulsive behaviors (self-mutilation, cribbing in horses). Hepatotoxicity at high doses. Blocks endogenous opioid reward pathways.
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? Naltrexone 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.