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Gastro Gold III Gastric Ulcer Prevention

Regularly: $28.99

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Gastro Gold III Gastric Ulcer Prevention


In Stock. Usually Ships within 24 hours.

Shipping weight = 0.10 lb.


Product Summary:

Gastro Gold III
(formerly known as GastroMax 3)

Gastro Gold III delivers superior equine ulcer prevention. Formulated for one of the most prevalent problems in the equine industry, the added ingredient of L-glutamine, a natural stomach healing agent, allows for almost 100% absorption of Omeprazole, a medicated ingredient. Sodium Acid Carbonate is added as an acid neutralizer.


  • Highly effective inhibitor of acid secretion in horses, creating a favorable environment in order to prevent ulcers
  • Carbo Shield technology can protect key ingredients allowing maximum absorption and effectiveness by neutralizing the harsh stomach acid
  • Proven to prevent ulcers and their reoccurrence, even during training; not just to alleviate their clinical signs
  • Allows convenient once-daily dosing
  • Formulation developed for the ease of administration, efficacy, and acceptability to horses
Item Specifications:

4mg syringe (1 dose)

Active Ingredients:
USP Grade Omeprazole: 2.28g
L-Glutamine: 1g
Sodium Acid Carbonate: 0.7g

For additional product information, please see clickable links listed under Downloadable Resources to the right.

Downloadable Resources
MSDS SheetManufacturer Information
Product LabelManufacturer Information
Product Directions for UseManufacturer Information
Product Syringe InstructionsManufacturer Information
Item Number Model Number UPC
E005727 DE0053 680201853584

Product Reviews by Customers

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Browse 4 questions Browse 4 questions and 62 answers
Why did you choose this? Store
Seems to help with horses ulcers if used regularly
sherrie s on May 9, 2019
My OTTB has ulcer that need to be treated
Karen K on Mar 11, 2019
Seems to help with horses ulcers if used regularly
sherrie s on May 9, 2019
Because it's cheaper than the competition and it can really made a difference with some horses.
Dawn S on Apr 7, 2019
My OTTB has ulcer that need to be treated
Karen K on Mar 11, 2019
OTTB.... Enough Said.
Anne P on Feb 25, 2019
It works well on my horse
Cindy N on Jan 22, 2019
sherrie s on Jan 21, 2019
I've used this product for my horse in the past and he was feeling better within a couple days after we started a 30 day regimen. I have also used this product before we trailer to horse shows and he has not displayed any stomach issues. I found this product to be very effective and cost efficient over the main brand. He is currently in training and showing possible signs of ulcers, so we are treating him to be on the safe side.
Jamie C on Jan 16, 2019
It works really well and it is less expensive
Carol A on Jan 11, 2019
works well and affordable
Amy H on Jan 8, 2019
This is a very effective product for our horses when they are traveling or competing.
Celene L on Nov 30, 2018
The best price
Susan S on Nov 26, 2018
I've heard it works well and it is cheaper than Ulcergard
Laura F on Nov 25, 2018
It works !!!
Kristin S on Nov 16, 2018
I've tried it in the past and it worked to calm my horses while traveling and competing.
Cynthia W on Nov 5, 2018
Our horse needs it, it has good ingredients and has shown to be as effective as more expensive brand.
Anita G on Oct 16, 2018
Cheaper that UlcerGuard and works just as well.
Solveig A on Oct 11, 2018
Works well in my horse.
Stephanie S on Oct 8, 2018
more affordable than the brand name options of omeprazole.
Laurel J on Oct 3, 2018
I chose this product for the cost. I only hope it helps.
DONNA O on Aug 27, 2018
State Line has the best price. This my vet said is comparable to Ulcer Guard. A name brand product that is usually over $10 more. So a savings of $10 per tube is a good value for me. Where State Line gets you is in the shipping. Make sure to check your shipping costs at the end of the sale, as they do not add it in.
Gretchen B on Aug 15, 2018
1. More affordable than gastroguard or ulcerguard;
2. worked for friend's mare.
CHRISTINE S on May 31, 2018
The price is the reason I chose this item over Ulcerguard or Gastrogard
Margaret H on Apr 30, 2018
It works
MARTHA J on Apr 25, 2018
Marcia P on Apr 17, 2018
renee d on Mar 28, 2018
I have purchased this item from another local store and it was a few dollars more. I'm not sure if there was any savings because you have to pay for shipping with State Line no matter how much you spend.
Gretchen B on Mar 27, 2018
Ulcer treatment
Olivia D on Mar 20, 2018
Economical and reviews have been good
Kristin C on Mar 12, 2018
Recommended by a fellow horse owner.
James S on Mar 3, 2018
the ingredients and the price is right
Elizabeth R on Feb 27, 2018
Reviews, quality, price....not in that order
Susan M on Feb 8, 2018
I used it on a stressing mare and it really worked great. I like this product a lot.
Vicki H on Feb 6, 2018
Price as well as customer feedback
Polly B on Jan 31, 2018
After researching this was the best deal for a short course of treatment that has the same dosage as prescription/ulcergard/gastrogard. It works really well, but you have to watch out because the stopper on it slips and give more than the dose you set it to.
Kylie M on Nov 13, 2017
This was suggested by a friend for my horse, stateline had the best deal on the product.
Linda H on May 7, 2017
I chose GastroMax 3 because it has EXACTLY the same amount of med that ulcergard and gastrogard has for HALF the cost!!! The tube on the ulcergard and gastrogard is AMAZING! so this tube may not be as nice (from the photo) BUT for over $20 less cost per tube that is something I can deal with! I am giving 1/4 - 1/5 a tube a day for my horse who is on bute daily to help prevent him from getting an ulcer. Better that then a whole tube every day to try and heal and ulcer! God Bless
Amanda D on Jan 28, 2016
To help heal Equine gastric ulcers.
Brian M on Dec 21, 2015
Needed something a bit cheaper than Ulcer Guard so I decided to try this out.
Stephanie A on Jul 19, 2015
My horse Reggie has ulcers
Christine S on May 21, 2015
same as ulcer gaurd but cheaper
Michelle M on Apr 3, 2015
ulcer prevention
Kristin O on Mar 12, 2015
Price and wanted to try product
Dawn W on Feb 11, 2015
Product ingredients and name reputation as well as exceptional price.
mark d on Jan 20, 2015
price and need
kathy r on Nov 27, 2014
Price and reviews. Same amount of omeprazole as ulcergard.
THERESA P on Jun 4, 2014
Best ulcer protection you can get today without a prescription from your vet. It contains the same ingredient (omeprazole). State Line Tack offers the best deal!
Amber A on May 15, 2014
Vet ordered
Dedra M on Feb 27, 2014
For the prevention of ulcers during competition
Julie M on Feb 23, 2014
price and my horse is being treated for ulcers
ELISSA C on Feb 12, 2014
Good product that vet recommended and they had a good price
Robert F A on Dec 23, 2013
Because it's cheaper than the competition and it can really made a difference with some horses.
Dawn S on Apr 7, 2019
OTTB.... Enough Said.
Anne P on Feb 25, 2019
What is the daily dose and for how many days do you administer this product?
Susan S on Jan 6, 2014
BEST ANSWER: It varies and I would ask your vet first. You can start with a full tube for 7 days (loading dose) then go to the recommened dosage which 1/3 each day for four to six weeks. Due to our weather in Georgia which is 5 degrees (today) one day then 60 for the weekend I keep him on it during times like this. Hope this helps.
Does this help treat ulcers, or just prevent them?
Grace on Jan 30, 2018
BEST ANSWER: Both. I use a 1/4 tube 3 times a week for a maintenance dose and i used 1 tube a day for 5 days to treat the initial problem. I will also use a full tube before trailering to prevent an ulcer flair up. I believe this works better than Ulcergard which is far more expensive.
Has anyone used this product to cure ulcers?
A shopper on Mar 19, 2018
BEST ANSWER: Yes I have. I use it before a lesson if its a hard lesson, before trailering and at horse shows. He is very ulcerated so I also use u guard everyday. If your horse is also cinch I would give him some. This product is good