VETINUITY
Is IV pantoprazole better than IV famotidine?
For raising gastric pH, yes. In a crossover study of healthy dogs, pantoprazole kept gastric pH above the target range for a larger share of the day than famotidine.
● ANSWER
Sourced & dated
What is the pantoprazole dose for dogs and cats?
Pantoprazole is given at 1 mg/kg IV over 15 minutes every 12 hours in dogs and 1 mg/kg IV every 12-24 hours in cats, switching to an oral PPI once the patient eats.
● VETINUITY PANTOPRAZOLE DOSE CALCULATOR
Vetinuity pantoprazole dose calculator
Volume assumes a 40 mg vial reconstituted with 10 mL saline (4 mg/mL).
● WHAT'S DOCUMENTED
The Vetinuity pantoprazole dose calculator above uses 1 mg/kg IV every 12 hours for dogs and 1 mg/kg IV every 12 to 24 hours for cats, infused over about 15 minutes; that is the intravenous proton pump inhibitor regimen most hospitals run for a vomiting, anorexic or bleeding patient who cannot take tablets. Once the animal eats, move to oral omeprazole at the same twice-daily rhythm.
Pantoprazole doses by indication
| Indication | Dog | Cat | Route and frequency |
|---|---|---|---|
| Upper GI bleeding or ulceration, NPO patient | 1 mg/kg | 1 mg/kg | IV over 15 min, q12h |
| Esophagitis (reflux after anesthesia, ingested caustics) | 1 mg/kg | 1 mg/kg | IV q12h, then oral PPI |
| Severe acid suppression in hospital, either species | 1 mg/kg | 1 mg/kg | IV q12h (cats sometimes q24h) |
Preparing the dose
The vial holds 40 mg of lyophilized powder. Reconstituting with 10 mL of 0.9% saline gives 4 mg/mL; that is the concentration the calculator draws against. Many hospitals dilute the dose further and run it over 15 minutes through a dedicated line, because pantoprazole is incompatible with several drugs given in the same set. Flush before and after.
How it compares
The 2018 ACVIM gastrointestinal protectant consensus favors PPIs over H2 blockers when acid suppression is actually needed, and recommends against routine use in pancreatitis, kidney disease or hepatic disease without ulceration. A comparative study in dogs measured gastric pH after IV pantoprazole and IV famotidine and found the PPI held pH higher for longer. Pantoprazole needs a few doses to reach full effect, so start it early rather than reaching for it when melena appears.
Key cautions
Long-term PPI therapy changes the gut microbiome and may raise the risk of enteric infection; reassess at discharge rather than sending the patient home on indefinite acid suppression. Stop gradually after more than 3 to 4 weeks of use, because rebound acid hypersecretion is described. This dose table belongs to Vetinuity, a clinical assistant from emergency veterinarian Brian Toncray, DVM.
Related: omeprazole, famotidine, GDV stabilization and AHDS.
● SOURCES
- 1. Marks SL, Kook PH, Papich MG, et al. ACVIM consensus statement: Support for rational administration of gastrointestinal protectants to dogs and cats. J Vet Intern Med. 2018;32(6):1823-1840. PMID 30378711. Proton pump inhibitors; IV administration. Checked 2026-10-26.
- 2. Kuhl A, Odunayo A, Price J, et al. Comparative analysis of the effect of IV administered acid suppressants on gastric pH in dogs. J Vet Intern Med. 2020;34(2):678-683. PMID 32020689. Methods and results. Checked 2026-10-26.
- 3. DailyMed: Protonix I.V. (pantoprazole sodium) label search. Preparation and administration. Checked 2026-10-26.
● RELATED ANSWERS
- Omeprazole Dose for Dogs and Cats
Omeprazole is dosed at 1 mg/kg by mouth every 12 hours in dogs and cats, given 30-60 minutes before a meal, and tapered rather than stopped after courses longer than 3-4 weeks.
- Famotidine (Pepcid) Dose for Dogs and Cats
Famotidine is dosed at 0.5-1 mg/kg PO or slow IV every 12 hours in dogs and cats; twice-daily dosing matters because once-daily famotidine barely moves gastric pH.
- GDV in Dogs: Emergency Stabilization Steps
Vetinuity's GDV table: two large forelimb catheters, crystalloid boluses of 20 mL/kg, gastric decompression by trocar or tube, a full mu opioid and lidocaine 2 mg/kg IV then 50 mcg/kg/min.
- AHDS, Formerly HGE, in Dogs: Treatment
Acute hemorrhagic diarrhea syndrome (AHDS), previously called HGE, is managed primarily with prompt IV fluids and supportive care guided by perfusion and ongoing losses.
- Canine Acute Pancreatitis: Management
Canine acute pancreatitis care centers on fluid support, analgesia, antiemetics and nutrition, with treatment adjusted to severity and complications.
- Ibuprofen and NSAID Overdose in Dogs: Toxic Doses
Ibuprofen causes GI signs in dogs from 100-125 mg/kg, renal failure from 175-300 mg/kg, CNS signs above 400 mg/kg and can be lethal above 600 mg/kg; naproxen is toxic at far lower doses.
● FAQ
How long can pantoprazole be stored after reconstitution?
The human label allows the reconstituted solution to be held at room temperature for a limited number of hours; check the vial's insert, and discard unused drug rather than keeping it for days.
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