EGUSIN SLH® and EGUSIN 250® by Centaur Animal Health

Since it was founded in 1986, Centaur Animal Health business focus has been concentrated in

Got a horse with gut disturbances or ulcers that needs an established equine gut formula?

Reviewed by Ann Pruitt, InfoHorse.com · Updated May 2026

EGUSIN SLH® and EGUSIN 250® by Centaur Animal Health - Image 2 on InfoHorse.com

EGUSIN SLH® and EGUSIN 250®by Centaur Animal Health

EGUSIN SLH® for horses exhibiting gut disturbances and EGUSIN 250® to maintain a healthy gut -by the decicated team at CENTAUR Animal Health

About Centaur Animal Health

Since it was founded in 1986, Centaur Animal Health business focus has been concentrated in adaptations of proven new technology -- with special emphasis in biotechnology -- converting successes from the human healthcare market to help similar problems in the animal health markets. Centaur’s first products were concentrated in the equine market, and focused on diagnostic technologies that were representative of ‘breakthrough innovations’. One such product is the Equine Infectious Anemia (EIA) diagnostic that was adapted from the human Aids test and for which a patent was granted in 1995.

Centaur Animal Health and United Agriculture and Veterinary Products, Inc. (Unavet) were two separate Kansas City based animal health businesses that have been operational since the mid 1980’s. Both companies had been engaged in sales activity in separate but complimentary segments of the animal health market. The merging of the two existing companies in 2001 provided efficiencies and growth opportunities available that would not have been available to either company individually.

Does Your Horse Have The Digestive Support Necessary To Maintain Top Health And Feed Utilization?The digestive tract has often been referred to as the "engine" of the horse. It is the engine that supplies the power-- without an effective and well operating engine, you just won't go anywhere-- and it works very similarly with your horse.

About EGusin SLH® and EGUSIN 250®
These two great products from Centaur Animal Healthare natural feed supplements which have been demonstrated to be beneficial in promoting a healthy stomach and an aid in preventing the destruction of the stomach lining. EGUSIN® is not a pharmacological solution that might interfere with normal gastrointestinal function. EGUSIN® is a combination of ingredients that collectively work together to return the stomach to normal function.

Egusin® SLH Assists Horses Already Experiencing Gastric Disturbances!Is your horse already showing signs of gastric distress? Biting at their sides over and over? Irritable during cinching up the saddle? Laying down right after eating hay? Dunking their hay in water before eating? All of these may be a signal that your horse is experiencing gastric upset or disturbances! Egusin® SLH was formulated to help horses (and the owners that worry about them!) that are already experiencing gastric disturbances. Egusin® SLH is a pelleted combination of natural ingredients that has been demonstrated to be beneficial in addressing the primary causes of equine gastro-intestinal disturbances.

Egusin® 250 Helps Horses Maintain A Healthy Gut!

Every horse depends upon a healthy gut to maintain a good digestive and immune system. Once you have helped to restore the health and well being of your horse's digestive tract, Egusin® 250 is specially designed to help you Maintain that healthy gut! It is an alfalfa pellet based formulation of natural ingredients that has been demonstrated to be beneficial in promoting a healthy stomach and intestinal environment to avoid recurring gastro-intestinal disturbances in horses
So.... What Is The Egusin® Concept?Egusin consists of two types of stabilizing dietetic feed supplements for adult horses, young horses and foals suffering from Egus, stress periods and an imbalance in the intestinal system due to a high production of excess gastric acid.

Note:The Egusin® concept is based on a unique combination of active nutraceuticals, neutralizing excess gastric acid, protects the stomach lining and preventing the formation of “stress stomach” which can result in loose stools and signs of stomach discomfort-- something that all horse owners fear and watch for!
What Does The Egusin Concept Include?
The Egusin concept consists of two types of stabilizing dietetic feed supplement:

* Egusin® SLH- used as the first dietetic feed when “stress stomach” is observed-- in other words, gastric distress is already apparent.
* Egusin 250®- used as a “second follow diet” to maintain proper stomach function

Why Do We Use Whole Oat Groats?
Whole oat groats functional value:

What Customers Say

My 13 yr. old TB gelding just finished his second week on Egusin SLH, and the product is already living up to and exceeding expectations. My horse had been subjected to many acute and chronic stressors that are known to cause ulcers (i.e. extended periods of stall confinement/lack of adequate for several years, a recent move to a new farm, and then a 6-8 week bout of rapid weight loss from an insufficient feeding regimen).

Beneficial dietetic fibers and nutritional components
Beta-glucan- gels in the stomach, acting as a coating for the stomach lining.
Insoluble oats fibers- delay the stomach emptying which aids in preventing gastrointestinal disorders.
Polar lipids- rich phospholipids aid in re-establishing the stomach lining.
Natural antioxidants- aid in protecting the muscle cells from degradation by the free radicals.

How Does Egusin® Work?Antacids neutralize excess corrosive gastric acid to protect the stomach lining against destruction. Lecithin, a phospholipid, restores damaged cell membranes. Pectin acts as a barrier under which the gastric mucosa membranes are allowed to heal. Natural antioxidants protect the cells from destructive free radicals.

Micro-milled whole oats also interact with stomach acid forming a gel to augment the protective barrier provide by Pectin. The oat fibers also delay gastric emptying so acid has something to act on besides the lining, and act as a substrate to carry away toxins and bacteria. EGUSIN® may be administered 3-5 days before, through, and during the return from an event to assure the stomach maintains normal function.

What If My Horse Is Displaying Real Stomach Distress?If there is acute stomach distress, try one bucket of EGUSIN SLH® sufficient for 21 days, then rotate over to the EGUSIN 250®, to maintain the health. If a horse resumes normal foraging, EGUSIN®, may be discontinued. Some customers have reported the need to resume use possibly due to the long standing effects of chronic stomach lesions. EGUSIN SLH® and EGUSIN 250® do more, work faster, and cost considerably less, than other products.

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The Solution Section (FAQ)

What is the difference between EGUSIN SLH® and EGUSIN 250®?

EGUSIN SLH® is formulated for horses that are already showing signs of gastric disturbance, used as the first dietetic feed when a "stress stomach" is observed. EGUSIN 250® is a maintenance formula designed to help keep the gut healthy once normal function has been restored. Many owners start with EGUSIN SLH® and then rotate to EGUSIN 250® for ongoing support.

How do EGUSIN® supplements actually work in the horse's stomach?

EGUSIN® combines natural ingredients that work together rather than acting as a pharmacological treatment. Antacids neutralize excess corrosive gastric acid, lecithin (a phospholipid) helps restore damaged cell membranes, pectin forms a barrier under which the gastric mucosa can heal, and natural antioxidants protect cells from free radicals. Micro-milled whole oats also form a gel that augments the protective barrier and delays gastric emptying.

What signs suggest my horse might have gastric upset?

Common signals include biting at the sides repeatedly, irritability while cinching up the saddle, lying down right after eating hay, or dunking hay in water before eating. Watery or loose stools, weight loss, rapid "inhaling" of food, and a dull or spooky attitude can also point to gastric distress. EGUSIN SLH® was formulated specifically to help horses already experiencing these disturbances.

Why does EGUSIN® use whole oat groats?

Whole oat groats supply beneficial dietetic fibers and nutritional components that support stomach health. Their beta-glucan gels in the stomach to coat the lining, insoluble oat fibers delay stomach emptying to help prevent gastrointestinal disorders, and polar lipids (rich phospholipids) aid in re-establishing the stomach lining. The oats also carry natural antioxidants that help protect muscle cells from free-radical degradation.

How long does my horse need to be on EGUSIN SLH®?

For acute stomach distress, Centaur Animal Health suggests trying one bucket of EGUSIN SLH®, sufficient for 21 days, and then rotating over to EGUSIN 250® to maintain stomach health. If a horse resumes normal foraging, EGUSIN® may be discontinued, though some owners report a need to resume use due to the long-standing effects of chronic stomach lesions.

Can I use EGUSIN® around shows, travel, or other stressful events?

Yes. EGUSIN® consists of stabilizing dietetic feed supplements intended for adult horses, young horses, and foals dealing with EGUS, stress periods, and an imbalance in the intestinal system from excess gastric acid. EGUSIN® may be administered 3 to 5 days before, through, and during the return from an event to help the stomach maintain normal function.

Who makes EGUSIN®, and is the company experienced in animal health?

EGUSIN® is made by Centaur Animal Health, a Kansas City-based animal health company founded in 1986 that focuses on adapting proven new technology, with special emphasis on biotechnology, from the human healthcare market to the animal health market. Centaur's first products were concentrated in the equine market, including an Equine Infectious Anemia (EIA) diagnostic adapted from the human AIDS test, for which a patent was granted in 1995.

How can I get EGUSIN SLH® or EGUSIN 250® for my horse?

EGUSIN SLH® and EGUSIN 250® pellets are available through Centaur Animal Health and fine retailers such as ValleyVet. To ask which product fits your horse or to learn more, contact Centaur Animal Health's friendly staff at 913-390-6184, email sales@centauranimalhealth.com, or visit https://www.centauranimalhealth.com/.