Pocket Pet · Cavia porcellus · typical adult weight 0.70–1.20 kg
Butorphanol Injectable is dosed at 0.4–2 mg/kg SC q4-6h in guinea pigs, per Flecknell PA. Analgesia and post-operative care. Laboratory Animal Anaesthesia; 2016:141-192. doi:10.1016/b978-0-12-800036-6.00004-1; Allweiler SI. How to improve anesthesia and analgesia in small mammals. Vet Clin North Am Exot Anim Pract. 2016;19:361-377. doi:10.1016/j.cvex.2016.01.012; Morrisey JK, Carpenter JW. Formulary. In: Quesenberry KE, Carpenter JW, eds. Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery, 4th ed., Elsevier, St. Louis, MO; 2021:620-630. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.790 (2026-08-01).. Butorphanol Injectable is used in guinea pigs for Analgesia. Routes documented in guinea pigs: SC. A typical adult guinea pig weighs 0.70–1.20 kg. ExoticRx lists 1 cited dose rule for Butorphanol Injectable in guinea pigs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Torbugesic, Torbutrol Injectable
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| SC | 0.4–2 mg/kg | q4-6h |
| As needed |
| Analgesia |
| Moderate |
| Flecknell PA. Analgesia and post-operative care. Laboratory Animal Anaesthesia; 2016:141-192. doi:10.1016/b978-0-12-800036-6.00004-1; Allweiler SI. How to improve anesthesia and analgesia in small mammals. Vet Clin North Am Exot Anim Pract. 2016;19:361-377. doi:10.1016/j.cvex.2016.01.012; Morrisey JK, Carpenter JW. Formulary. In: Quesenberry KE, Carpenter JW, eds. Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery, 4th ed., Elsevier, St. Louis, MO; 2021:620-630. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.790 (2026-08-01). |
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These ranges are per kg. Enter your guinea pig's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Kappa agonist / mu antagonist. Moderate analgesia, good sedation. Injectable form for hospitalized and exotic patients.
DEA Schedule IV. 0.5mg/ml formulation for cats. Widely used in exotic species. Ceiling analgesic effect. Sedation. Respiratory depression less than pure mu agonists.
Species-specific contraindications and adverse-reaction reports for guinea pigs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Butorphanol Injectable dose range in guinea pigs, with cited source references: SC 0.4–2 mg/kg q4-6h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Butorphanol Injectable in guinea pigs: SC.
Cited course lengths for Butorphanol Injectable in guinea pigs include: As needed. Duration depends on the indication — match it to the specific dose rule in the table above.
Butorphanol Injectable is indicated in guinea pigs for: Analgesia.
These are general warnings for Butorphanol Injectable across species; consult the guinea pig dosing table above for species-specific guidance. DEA Schedule IV. 0.5mg/ml formulation for cats. Widely used in exotic species. Ceiling analgesic effect. Sedation. Respiratory depression less than pure mu agonists.
Why a species-specific page? Butorphanol Injectable pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in guinea pigs — 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.