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 Carpenter's Exotic Animal Formulary, 6th ed, Table 9.4 (Analgesic Agents Used in Rodents) - Butorphanol: '1-2 mg/kg SC q4h51 | Guinea pigs, rats, mice' and '0.2-2 mg/kg q2-4h7,130 | Most species'. Cross-reference: Hedley J, BSAVA Small Animal Formulary Part B: Exotic Pets, 10th ed., printed p.47: 'Guinea pigs: 0.2-2 mg/kg s.c. q4h'. NOTE FOR THE EDITOR: the served bounds 0.4-2.0 mg/kg q4-6h are printed by NEITHER book for guinea pigs, and the two books disagree on the low bound (Carpenter 1, BSAVA 0.2) - that choice is a DVM decision, not an extraction decision.. 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 |
| Carpenter's Exotic Animal Formulary, 6th ed, Table 9.4 (Analgesic Agents Used in Rodents) - Butorphanol: '1-2 mg/kg SC q4h51 | Guinea pigs, rats, mice' and '0.2-2 mg/kg q2-4h7,130 | Most species'. Cross-reference: Hedley J, BSAVA Small Animal Formulary Part B: Exotic Pets, 10th ed., printed p.47: 'Guinea pigs: 0.2-2 mg/kg s.c. q4h'. NOTE FOR THE EDITOR: the served bounds 0.4-2.0 mg/kg q4-6h are printed by NEITHER book for guinea pigs, and the two books disagree on the low bound (Carpenter 1, BSAVA 0.2) - that choice is a DVM decision, not an extraction decision. |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 0.2–2 | SC | BSAVA Small Animal Formulary, 10th ed — Part B (Exotic Pets)p.61 | 0.2-2 mg/kg s.c. q4h |
| 0.2–2 | — | Carpenter's Exotic Animal Formulary, 6th edTable 9.4 | 0.2-2 mg/kg q2-4h,130 |
| 1–2 | SC | Carpenter's Exotic Animal Formulary, 6th edTable 9.4 | 1-2 mg/kg SC q4h |
Figures are transcribed from the cited page or table of each held edition and are shown for reference only. They are not dose recommendations, they do not feed the calculator, and none has been reviewed by a veterinarian.
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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.