Pocket Pet · Cavia porcellus · typical adult weight 0.70–1.20 kg
Famotidine is dosed at 0.4–0.5 mg/kg PO q24h in guinea pigs, per Carpenter's Exotic Animal Formulary, 6th ed., Table 9.7 Miscellaneous Agents Used in Rodents, p.800. Corroborated by BSAVA Part B p.127 ('Guinea pigs: 0.4 mg/kg p.o., s.c. q24h') and FRR 4th ed. Appendix Table A.5 p.629 (Guinea Pigs/Chinchillas: 0.4-0.5 mg/kg PO, SC q24h) — Carpenter's Exotic Animal Formulary 6th ed, Table 9.7 (Miscellaneous 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. Famotidine is used in guinea pigs for Gastric acid reduction. Routes documented in guinea pigs: PO. A typical adult guinea pig weighs 0.70–1.20 kg. ExoticRx lists 1 cited dose rule for Famotidine in guinea pigs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Pepcid
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 0.4–0.5 mg/kg | q24h | As needed | Gastric acid reduction | Extrapolated | Carpenter's Exotic Animal Formulary, 6th ed., Table 9.7 Miscellaneous Agents Used in Rodents, p.800. Corroborated by BSAVA Part B p.127 ('Guinea pigs: 0.4 mg/kg p.o., s.c. q24h') and FRR 4th ed. Appendix Table A.5 p.629 (Guinea Pigs/Chinchillas: 0.4-0.5 mg/kg PO, SC q24h) — Carpenter's Exotic Animal Formulary 6th ed, Table 9.7 (Miscellaneous 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 |
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 |
|---|---|---|---|
| 0.4 | PO | BSAVA Small Animal Formulary, 10th ed — Part B (Exotic Pets)p.141 | 0.4 mg/kg p.o., s.c. q24h |
| 0.4–0.5 | PO | Carpenter's Exotic Animal Formulary, 6th edTable 9.7 | 0.4-0.5 mg/kg PO, SC, q24h |
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.
Competitively blocks histamine H2 receptors on parietal cells, reducing basal and stimulated gastric acid secretion.
Generally well-tolerated. Adjust dose in renal impairment. Less effective than proton pump inhibitors at acid suppression.
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.
Famotidine dose range in guinea pigs, with cited source references: PO 0.4–0.5 mg/kg q24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Famotidine in guinea pigs: PO.
Cited course lengths for Famotidine in guinea pigs include: As needed. Duration depends on the indication — match it to the specific dose rule in the table above.
Famotidine is indicated in guinea pigs for: Gastric acid reduction.
These are general warnings for Famotidine across species; consult the guinea pig dosing table above for species-specific guidance. Generally well-tolerated. Adjust dose in renal impairment. Less effective than proton pump inhibitors at acid suppression.
Why a species-specific page? Famotidine 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.