Cat · Felis catus · typical adult weight 2.50–7.00 kg
Omeprazole is dosed at 0.5–1 mg/kg PO q24h in cats, per Plumb's Veterinary Drug Handbook, 9th Ed. Omeprazole is used in cats for Gastric ulceration, severe gastritis, Esophagitis (from anesthetic reflux). Routes documented in cats: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 2 cited dose rules for Omeprazole in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Prilosec, GastroGard
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These ranges are per kg. Enter your cat's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Irreversibly inhibits H+/K+-ATPase (proton pump) on parietal cells, providing potent and prolonged gastric acid suppression.
Must not be crushed (enteric-coated). Takes 3-5 days for full effect. Long-term use may affect calcium/magnesium absorption. Interacts with drugs requiring acid pH for absorption.
Species-specific contraindications and adverse-reaction reports for cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Omeprazole dose ranges in cats, with cited source references: PO 0.5–1 mg/kg q24h; PO 0.5–1 mg/kg q12-24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Omeprazole in cats: PO.
Cited course lengths for Omeprazole in cats include: 14-28 days; 7-14 days. Duration depends on the indication — match it to the specific dose rule in the table above.
Omeprazole is indicated in cats for: Gastric ulceration, severe gastritis, Esophagitis (from anesthetic reflux).
These are general warnings for Omeprazole across species; consult the cat dosing table above for species-specific guidance. Must not be crushed (enteric-coated). Takes 3-5 days for full effect. Long-term use may affect calcium/magnesium absorption. Interacts with drugs requiring acid pH for absorption.
Why a species-specific page? Omeprazole 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.