Date published: 2025-9-13

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GastroGard®

by Merial
5.0(14)
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Supports normal gastrointestinal health in horses
    • The only FDA approved product to treat equine gastric ulcers
    • Helps reduce stomach acid production that causes ulcers
    • Contains the active ingredient omeprazole
    • Safe for horses and foals 4 weeks of age and older
    • Provided as an oral paste
Catalog #DescriptionPriceQtyAutoshipCARTFAVORITES
sc-363041Rx
1 each
$42.49
sc-359626Rx
7 x 6 g/pack
$303.49
sc-359627Rx
14 x 6 g/pack
$595.09
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GastroGard® is the first and only medication approved by the FDA to treat Equine Gastric Ulcer Syndrome.

Stomach ulcers in horses may lead to pain and discomfort, poor performance, damage to the stomach lining, and even death. Any horse exposed to stressful conditions such as travel, showing, training, racing, competition, barn routine changes, and even stall confinement may be at risk for developing stomach ulcers. In addition, horses can develop stomach ulcers in as little as 5 days.

GastroGard® has been shown to safely and effectively treat existing stomach ulcers in horses and foals 4 weeks of age and older. It contains the active ingredient omeprazole which works to reduce stomach acid production at the source - the proton pump. With fewer active pumps, your horse's stomach produces sufficient acid to break down food, but not the excess acid that causes ulcers. By suppressing gastric acid production, GastroGard® also helps prevent the recurrence of stomach ulcers.

For treatment of gastric ulcers, each weight marking on the GastroGard® syringe plunger will deliver sufficient omeprazole to treat 250 lbs of body weight. A single syringe of GastroGard® will treat up to 1250 lbs. For prevention of gastric ulcer recurrence, each weight marking will deliver sufficient omeprazole to dose 500 lbs of body weight. GastroGard® may be safely used in breeding stallions. Safe use in breeding, pregnant or lactating mares has not been determined.

Supplied as either a single syringe, a box of 7 syringes, or a box of 14 syringes.

Please note that GastroGard® requires a veterinarian's prescription for purchase, and is intended for treating horses and foals with stomach ulcers as diagnosed by a veterinarian.

To help prevent the formation of gastric ulcers in your horse, use UlcerGard®.

Click here for Boehringer Ingelheim rebates

(Directs to external Boehringer Ingelheim website)

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Gastrogard and Ulcergard both contain 2.28 g of omeprozole. Ulcergard is slightly cheaper. What is the difference in these products?

Asked by: Maxcowgirl
Hi, thanks for the question. The manufacturer, Merial, may be able to provide this information to you.
Answered by: SCAH Rep
Date published: 2016-09-28
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Rated 5 out of 5 by from Great product and even greater customer serviceMy horse was diagnosed with gastric ulcers and the vet sold me a small quantity of Gastrogard, recommending that I find a better price online. Santa Cruz was the best I could find and I ordered what I needed, but it was a Saturday and I was concerned I wouldn't get the product when I needed it. I called SCAH on Monday morning and they assured me they would make it happen. The product arrived the afternoon of the day I ran out of what I'd purchased from the vet. I've almost completed the Gastrogard treatment and my horse is back to his old sweet self! I've already recommended SCAH to my horse friends and will continue to do so.
Date published: 2017-04-29
Rated 5 out of 5 by from Happy tummy!!My boy was off his feed & not himself, after a few days on the gastro guard he was eating & acting like himself. I kept him on a full dose for 14 days then started reducing the amount given. After the month on gastro guard he gained weight, had his energy level back & was off to the showcting where he was spectacular!!
Date published: 2016-12-13
Rated 5 out of 5 by from Another great item from Santa Cruz!I called my vet to have him give a prescription to their pharmaceutical department and they were very quick to respond ! I received it the very next day. Also being at an excellent price and being able to order single tubes is absolutely wonderful. I can't say enough good things about Santa Cruz!
Date published: 2017-10-20
Rated 5 out of 5 by from My vet recommended that I use GastroGardMy vet recommended that I use GastroGard to treat my performance horse who had been diagnosed with ulcers after scoping him. I was hesitant because it is an expensive product, but I am so glad I used it. My horse was healed after the 28 day treatment and now I have him on a prevention program!
Date published: 2015-02-16
Rated 5 out of 5 by from Healing MedicineThe horse I’ve owned for 15 yrs, suddenly colics 2 times within 1 month. After a gastroscoping and other diagnostics, they found a bleeding ulcer on my horse’s pylorus/stomach wall. I am so grateful to have GastroGard to heal him and help him feel better and get back to being himself again!
Date published: 2021-07-16
Rated 5 out of 5 by from Pricy, but it works!GastroGard is expensive, but it works. Just be sure to solve the root cause of the ulcer issue in addition to treating with medication or the ulcers will come back after treatment. Great product!!
Date published: 2017-08-31
Rated 5 out of 5 by from Great productWe show horses for a living and rely on GastroGard to help them stay happy and healthy on the road. It is a great product to help the horses deal with the stresses of competition and travel.
Date published: 2017-02-19
Rated 5 out of 5 by from Gastro GardThis product I believe is definitely working. Our colt has showed no signs of discomfort and seems to be healing.
Date published: 2022-09-30
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GastroGard is rated 5.0 out of 5 by 14.
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