Pocket Pet · Cavia porcellus · typical adult weight 0.70–1.20 kg
Morphine is dosed at 2–5 mg/kg SC, IM q4h in guinea pigs, per Flecknell PA. Analgesia and post-operative care. Laboratory Animal Anaesthesia; 2016:141-192. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.792 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. Morphine is used in guinea pigs for Analgesia (opioid). Routes documented in guinea pigs: SC, IM. A typical adult guinea pig weighs 0.70–1.20 kg. ExoticRx lists 1 cited dose rule for Morphine in guinea pigs, drawn from published veterinary references. Verify against current literature before clinical use.
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| SC, IM | 2–5 mg/kg | q4h | Analgesia (opioid) | Moderate | Flecknell PA. Analgesia and post-operative care. Laboratory Animal Anaesthesia; 2016:141-192. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.792 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 |
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 |
|---|---|---|---|
| 2–5 | SC | Carpenter's Exotic Animal Formulary, 6th edTable 9.4 | 2-5 mg/kg SC, IM q4h,130 |
| 5 | SC | Carpenter's Exotic Animal Formulary, 6th edTable 9.4 | 5 mg/kg SC |
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.
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 guinea pigs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Morphine dose range in guinea pigs, with cited source references: SC, IM 2–5 mg/kg q4h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Morphine in guinea pigs: SC, IM.
Morphine is indicated in guinea pigs for: Analgesia (opioid).
These are general warnings for Morphine across species; consult the guinea pig 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 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.