Pocket Pet · Rattus norvegicus var. domestica · typical adult weight 0.25–0.70 kg
Morphine is dosed at 2.5 mg/kg SC q2-4h in pet rats, per Flecknell PA. Analgesia and post-operative care. Laboratory Animal Anaesthesia; 2016:141-192. | Meredith A. BSAVA Small Animal Formulary: Part B: Exotic Pets, British Small Animal Veterinary Association, Quedgeley, Gloucester, UK; 2015. — Mined from Carpenter's Exotic Animal Formulary, 6th Ed, p.792 (2026-08-01, PENDING REVIEW). Morphine is used in pet rats for Analgesia (full mu opioid). Routes documented in pet rats: SC. A typical adult pet rat weighs 0.25–0.70 kg. ExoticRx lists 1 cited dose rule for Morphine in pet rats, drawn from published veterinary references. Verify against current literature before clinical use.
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| SC | 2.5 mg/kg | q2-4h | Analgesia (full mu opioid) | Moderate | Flecknell PA. Analgesia and post-operative care. Laboratory Animal Anaesthesia; 2016:141-192. | Meredith A. BSAVA Small Animal Formulary: Part B: Exotic Pets, British Small Animal Veterinary Association, Quedgeley, Gloucester, UK; 2015. — Mined from Carpenter's Exotic Animal Formulary, 6th Ed, p.792 (2026-08-01, PENDING REVIEW) |
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These ranges are per kg. Enter your pet rat's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Prototype full mu-opioid receptor agonist. Activates mu, kappa, and delta opioid receptors producing analgesia, sedation, and euphoria.
Histamine release with rapid IV injection (hypotension, bronchoconstriction — give slowly). Vomiting and defecation common initial effects. Respiratory depression. Cats: may cause excitation/dysphoria at higher doses. Controlled substance (Schedule II).
Species-specific contraindications and adverse-reaction reports for pet rats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Morphine dose range in pet rats, with cited source references: SC 2.5 mg/kg q2-4h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Morphine in pet rats: SC.
Morphine is indicated in pet rats for: Analgesia (full mu opioid).
These are general warnings for Morphine across species; consult the pet rat dosing table above for species-specific guidance. Histamine release with rapid IV injection (hypotension, bronchoconstriction — give slowly). Vomiting and defecation common initial effects. Respiratory depression. Cats: may cause excitation/dysphoria at higher doses. Controlled substance (Schedule II).
Why a species-specific page? Morphine pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in pet rats — 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.