Butorphanol for Ferrets

Pocket Pet · Mustela putorius furo · typical adult weight 0.60–2.00 kg

Butorphanol is dosed at 0.2–0.4 mg/kg SC q4-6h in ferrets, per Brown SA. Clinical techniques in the ferret. Semin Avian Exot Pet Med. 1997;6:75-85. / 65. Ko JC, Marini RP. Anesthesia. In: Fox JG, Marini RP, eds. Biology and Diseases of the Ferret, 3rd ed., Wiley Blackwell, Ames, IA; 2014:259-283. PMID: 41235870 — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.943 (2026-08-01). — Carpenter's Exotic Animal Formulary 6th ed, Table 11.6 (Analgesic Agents Used in Ferrets). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929. Butorphanol is used in ferrets for Sedation adjunct / mild analgesia. Routes documented in ferrets: SC. A typical adult ferret weighs 0.60–2.00 kg. ExoticRx lists 1 cited dose rule for Butorphanol in ferrets, drawn from published veterinary references. Verify against current literature before clinical use.

US trade names: Torbugesic, Torbutrol

Dose ranges

Route	Dose	Frequency	Indication	Evidence	Source
SC	0.2–0.4 mg/kg	q4-6h	Sedation adjunct / mild analgesia

What each reference text prints

Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.

Printed doses in mg/kg for this drug and species, by source
Dose (mg/kg)	Route	Source	As printed
0.05–0.2	—	Carpenter's Exotic Animal Formulary, 6th edTable 11.5	Loading dose 0.05-0.2 mg/kg; maintenance 0.1-0.4 mg/kg/hr
0.1–0.4	—	Carpenter's Exotic Animal Formulary, 6th edTable 11.5	Loading dose 0.05-0.2 mg/kg; maintenance 0.1-0.4 mg/kg/hr
0.05–0.5	SC	Carpenter's Exotic Animal Formulary, 6th edTable 11.6	0.05-0.5 mg/kg SC, IM q8- 12h,65
0.3	SC	Carpenter's Exotic Animal Formulary, 6th edTable 11.6	0.3 mg/kg SC q2- 4h

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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Side effects & warnings

Short duration of action (1-2 hours). Better for visceral than somatic pain. Ceiling effect on analgesia. May cause sedation and mild respiratory depression.

Species-specific contraindications and adverse-reaction reports for ferrets may differ from canine / feline reference data — consult the primary citations listed with each rule.

Frequently asked questions

What is the dose of Butorphanol for Ferrets?

Butorphanol dose range in ferrets, with cited source references: SC 0.2–0.4 mg/kg q4-6h. Reference ranges from cited sources — verify against current literature before clinical use.

How is Butorphanol administered in Ferrets?

Documented routes for Butorphanol in ferrets: SC.

What conditions does Butorphanol treat in Ferrets?

Butorphanol is indicated in ferrets for: Sedation adjunct / mild analgesia.

What are the side effects of Butorphanol in Ferrets?

These are general warnings for Butorphanol across species; consult the ferret dosing table above for species-specific guidance. Short duration of action (1-2 hours). Better for visceral than somatic pain. Ceiling effect on analgesia. May cause sedation and mild respiratory depression.

Why a species-specific page? Butorphanol pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in ferrets — the rules above are the citations specific to this species, not generic recommendations.