Gastric ulcers affect more than half of performance horses — and many pleasure horses too — yet they’re easy to miss and costly to treat the wrong way. These vet-reviewed guides take you through the whole journey, from the first subtle signs to a healed, comfortable horse.
Explore the guides
What ulcers are, how they’re diagnosed, treated, and prevented — the full picture.
Read more →The full range of signs, from picky appetite to girthiness — and the red flags.
Read more →The medication, dose, timeline, and follow-up that actually heals ulcers.
Read more →Feeding and management that stops ulcers before they start.
Read more →A clear breakdown of what diagnosis, medication, and follow-up cost.
Read more →Lower-cost ways to get the same active ingredient — compared honestly.
Read more →Free tool
Enter your horse’s weight for an estimate of the daily omeprazole dose at the standard label rates. This is an educational guide, not a prescription — confirm the dose and course length with your veterinarian.
Estimates use the FDA-approved label rates for omeprazole in horses. The approved pastes (GastroGard, UlcerGard) are pre-calibrated by body weight, so in practice you set the syringe plunger to your horse’s weight rather than measuring milligrams. A common protocol steps down to a 2 mg/kg maintenance dose after treatment. Always confirm dosing and duration with your veterinarian, and don’t dose unapproved or compounded products without veterinary direction.
About this resource
EquineUlcer.com is published by the team at VETR, an animal-health company on a mission to make veterinary care and medication more accessible and affordable for everyday horse owners. Everything here is educational — and your own veterinarian always knows your horse best.
VETR’s mission is accessible, affordable animal health — including the supportive products that round out daily care for hard-working horses.
Supportive supplements are not a treatment for diagnosed ulcers and don’t replace veterinary care.