Pain Management in Pet Rats
Pocket Pet · Rattus norvegicus var. domestica · typical adult weight 0.25–0.70 kg
11 cited drugs treat Pain Management in pet rats: Buprenorphine, Butorphanol, Carprofen, Flunixin Meglumine, Ketoprofen, Meloxicam, Meperidine, Methadone, Morphine, Oxymorphone, Tolfenamic acid.
Multimodal analgesia spanning NSAIDs, opioids, local anaesthetics, NMDA antagonists (ketamine), α2 agonists, and adjuncts. Species safety matters: NSAIDs are unsafe in some reptiles, opioid receptor distributions differ in birds, and rabbits tolerate buprenorphine particularly well.
The overview above describes Pain Management across species; the citations below are the ExoticRx dose rules scoped to pet rats — a reference list, not new species-specific clinical guidance.
Buprenorphine(Simbadol, Buprenex)
Analgesic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 0.4 mg/kg | q24h | Post-operative analgesia after major surgery | Strong | Nordén ES, Veras I, Yadav P, Løken K, Dishington H, Thorstensen C, Sjaastad I, Rasmussen H. Clinical efficacy of buprenorphine after oral dosing in rats undergoing major surgery. Lab Anim. 2024;58(1):34-43. doi:10.1177/00236772231178417 https://europepmc.org/article/MED/37669442 |
| SC | 0.6–1 mg/kg | q72h | Pain (long-acting depot, e.g. Bup-SR) | Strong | Chum HH, Jampachairsri K, Mckeon GP, et al. Antinociceptive effects of sustained-release buprenorphine in a model of incisional pain in rats (Rattus norvegicus). J Am Assoc Lab Anim Sci. 2014;53:193-197. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.790 (2026-08-01). — Carpenter's Exotic Animal Formulary 6th ed, Table 9.4 (Analgesic Agents Used in Rodents). 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 |
| SC | 0.05–0.1 mg/kg | q6-12h | Pain (opioid, repeat dosing) | Weak | Quesenberry, Orcutt, Mans & Carpenter, Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery, 4th ed., Table 9.4 'Analgesic Drug Dosages Recommended in Small Mammals', p.552 - Rat: buprenorphine 0.05-0.5 SC, IM q6h (table footnote: 'Doses are in milligram per kilogram unless specified otherwise') — LOCATOR CONVENTION 2026-08-07: 'p.552' is the PRINTED page number, confirmed by finding the drug named on it in the held copy. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery — ISBN 9780323484350, https://openlibrary.org/isbn/9780323484350 |
Butorphanol(Torbugesic, Torbutrol)
Analgesic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| SC | 1–5 mg/kg | q4h | Analgesia (mild to moderate, visceral) | Moderate | Ewringmann A, Gloeckner B. Leitsymptome bei Hamster, Ratte, Maus und Rennmaus, Enke, Stuttgart, Germany; 2014. | Meredith A. BSAVA Small Animal Formulary: Part B: Exotic Pets, British Small Animal Veterinary Association, Quedgeley, Gloucester, UK; 2015. | 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. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.790 — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712; Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery — ISBN 9780323484350, https://openlibrary.org/isbn/9780323484350 [w3r2 2026-08-14] LOCATOR: Carpenter 6th ed, Table 9.4 (Analgesic Agents Used in Rodents). Held copy is a paginationless ebook conversion, so the table and not the page is the citable location. |
Carprofen(Rimadyl, Novox)
Analgesic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO, SC, IM, IV | 2–5 mg/kg | total daily dose, single or two divided doses | Analgesia / anti-inflammatory (NSAID) | Moderate | Meredith A. BSAVA Small Animal Formulary: Part B: Exotic Pets, British Small Animal Veterinary Association, Quedgeley, Gloucester, UK; 2015. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.790 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.4 (Analgesic Agents Used in Rodents). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712; Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929 |
| SC | 5 mg/kg | single dose (not stated) | Analgesia / anti-inflammatory (NSAID) | Moderate | Ewringmann A, Gloeckner B. Leitsymptome bei Hamster, Ratte, Maus und Rennmaus, Enke, Stuttgart, Germany; 2014. | Flecknell PA. Analgesia and post-operative care. Laboratory Animal Anaesthesia; 2016:141-192. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.790 doi:10.1055/b-003-125775 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.4 (Analgesic Agents Used in Rodents). 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 |
Flunixin Meglumine(Banamine)
Analgesic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| SC | 2.5–5 mg/kg | q12-24h | Analgesia / anti-inflammatory (NSAID) | Moderate | Flecknell PA. Analgesia and post-operative care. Laboratory Animal Anaesthesia; 2016:141-192. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.791 doi:10.1016/b978-0-12-800036-6.00004-1 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.4 (Analgesic Agents Used in Rodents). 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 |
Ketoprofen(Ketofen)
Analgesic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| SC | 5 mg/kg | not stated in source | Analgesia / anti-inflammatory (NSAID) | Moderate | Flecknell PA. Analgesia and post-operative care. Laboratory Animal Anaesthesia; 2016:141-192. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.792 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.4 (Analgesic Agents Used in Rodents). 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 |
Meloxicam(Metacam)
Analgesic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 1–2 mg/kg | q24h | NSAID / pain (post-op, mammary tumour) | Strong | 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 — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.792 (2026-08-01). — Carpenter's Exotic Animal Formulary 6th ed, Table 9.4 (Analgesic Agents Used in Rodents). 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 |
Meperidine
Analgesic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| SC, IM | 10–20 mg/kg | q2-3h | Analgesia (opioid) | Weak | Flecknell PA. Analgesia and post-operative care. Laboratory Animal Anaesthesia; 2016:141-192. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.792 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.4 (Analgesic Agents Used in Rodents). 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 |
Methadone(Methadose)
Analgesic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| SC, IM | 1–4 mg/kg | not stated in source | Analgesia (full mu opioid) | Moderate | Allweiler SI. How to improve anesthesia and analgesia in small mammals. Vet Clin North Am Exot Anim Pract. 2016;19:361-377. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.792 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.4 (Analgesic Agents Used in Rodents). 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 |
Morphine
Analgesic| 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. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.792 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.4 (Analgesic Agents Used in Rodents). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712; Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929 |
Oxymorphone
Analgesic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| SC, IM | 0.2–0.5 mg/kg | q4h | Analgesia (opioid) | Moderate | Flecknell PA. Analgesia and post-operative care. Laboratory Animal Anaesthesia; 2016:141-192. | Miller AL, Richardson CA. Rodent analgesia. Vet Clin North Am Exot Anim Pract. 2011;14:81-92. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.793 doi:10.1016/b978-0-12-800036-6.00004-1 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.4 (Analgesic Agents Used in Rodents). 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 |
Tolfenamic acid
Analgesic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO, SC | 4 mg/kg | q24h x 3 doses max | Analgesia / anti-inflammatory (NSAID) | Moderate | Ewringmann A, Gloeckner B. Leitsymptome bei Meerschweinchen, Chinchilla und Degu, Enke, Stuttgart, Germany; 2012. | Ewringmann A, Gloeckner B. Leitsymptome bei Hamster, Ratte, Maus und Rennmaus, Enke, Stuttgart, Germany; 2014. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.793 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.4 (Analgesic Agents Used in Rodents). 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 |
Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice. Verify against current literature before clinical use.