Equine · Equus caballus · typical adult weight 350.00–700.00 kg
Famotidine is dosed at 2.8 mg/kg PO q12h in horses, per Plumb's Veterinary Drug Handbook, 10th ed. (2023), printed p.500 (corpus plumb p.527), Famotidine, Dosages — HORSES. Underlying source: Duran SH, Ravis WR. Comparative pharmacokinetics of H2 antagonists in horses. Presented at: ACVIM Forum; 1993 (Plumb's ref 12). — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207. Famotidine is used in horses for Gastric ulcers adjunct. Routes documented in horses: PO. A typical adult horse weighs 350.00–700.00 kg. ExoticRx lists 1 cited dose rule for Famotidine in horses, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Pepcid
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 2.8 mg/kg | q12h | Gastric ulcers adjunct | Weak | Plumb's Veterinary Drug Handbook, 10th ed. (2023), printed p.500 (corpus plumb p.527), Famotidine, Dosages — HORSES. Underlying source: Duran SH, Ravis WR. Comparative pharmacokinetics of H2 antagonists in horses. Presented at: ACVIM Forum; 1993 (Plumb's ref 12). — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 |
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 |
|---|---|---|---|
| 1–2 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.339 | • 1-2 mg/kg q6-8h PO. |
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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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 horses may differ from canine / feline reference data — consult the primary citations listed with each rule.
Famotidine dose range in horses, with cited source references: PO 2.8 mg/kg q12h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Famotidine in horses: PO.
Famotidine is indicated in horses for: Gastric ulcers adjunct.
These are general warnings for Famotidine across species; consult the horse 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 horses — 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.