Cat · Felis catus · typical adult weight 2.50–7.00 kg
Famotidine is dosed at 0.5–1 mg/kg IV q12-24h in cats, per Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.527 (2026-08-01).. Famotidine is used in cats for Acute gastritis, Gastric acid reduction. Routes documented in cats: IV, PO, SC. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 3 cited dose rules for Famotidine in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Pepcid
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IV | 0.5–1 mg/kg | q12-24h | As needed | Acute gastritis | Strong | Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.527 (2026-08-01). |
| PO | 0.5–1 mg/kg | q12-24h | 5-14 days | Gastric acid reduction | Strong | Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.527 (2026-08-01). |
| SC | 0.5–1 mg/kg | q12-24h | As needed | Gastric acid reduction | Strong | Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.527 (2026-08-01). |
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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 cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Famotidine dose ranges in cats, with cited source references: IV 0.5–1 mg/kg q12-24h; PO 0.5–1 mg/kg q12-24h; SC 0.5–1 mg/kg q12-24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Famotidine in cats: IV, PO, SC.
Cited course lengths for Famotidine in cats include: As needed; 5-14 days. Duration depends on the indication — match it to the specific dose rule in the table above.
Famotidine is indicated in cats for: Acute gastritis, Gastric acid reduction.
These are general warnings for Famotidine across species; consult the cat 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 cats — 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.