Managing Stress in Your Horse

Managing Stress in Your Horse

As a horse owner, it’s important to be aware of the common causes of stress, signs that a horse may show when stressed and how to proactively address stress levels.

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From AQHA Corporate Partner Boehringer Ingelheim Animal Health USA

Horses are just like us. They can experience many feelings like excitement, nervousness and even stress. Horses can experience stress from a variety of different environmental and social factors. Each horse may show signs of stress in different ways, and many respond to stress differently, too. Left unaddressed, stress can have negative impacts on a horse’s physical health and overall quality of life.

As a horse owner, it’s important to be aware of the common causes of stress, signs that a horse may show when stressed and how to proactively address stress levels. 

Stress in horses is most often a result of lifestyle changes, big or small. While some horses can adjust to these changes easily, other horses may have a harder time.1 Changes that may not seem like a big deal to us may have a greater effect on our horses.  While stress can be caused by many factors, some main causes include:

Changes in feeding, exercise and socialization can all lead to disruptions in a horse’s daily routine as they are very much creatures of habit.

Unfamiliar and disruptive surroundings like new stables, pasture mates, sights, sounds and smells can all be a lot for a horse to process.

As noted above, changes in a horse's routine can influence stress levels, but even more so when a horse travels in a confined trailer with altered access to their normal feed and water.

Studies show that weaning can be a time of increased stress and ulcer development. Even broodmares with 24-hour turnout can develop gastric ulcers. 2

As a horse owner or caretaker, it is our responsibility to recognize these potential everyday stressors in our horses’ lives and take steps to reduce them when possible. 

Luckily for us, horses are typically not shy about showing signs of stress, which can help to alert us when something may be going on. Use this information as a guide to recognize stress, but ultimately, you know your horse and their behavior the best. Some common indicators of stress may include:

•    Excessive sweating
•    Reduced appetite
•    Loose manure or “increased fecal water content”
•    Weaving, pacing, pawing, cribbing or circling the stall
•    Spooking or bolting 
•    Aggression

Pay attention to any changes in the way a horse acts, sounds or feels. If you notice any behavioral changes consistent with the above signs, always consult with a veterinarian.

While we can’t remove all stressors from our horse’s lives, we can take proactive steps to lessen the amount and reduce the negative effects of stress.  Here are a few general tips to consider if you’re looking to proactively reduce stress levels in your horse:

Creating and sticking to a healthy routine can help keep stress levels low. When feeding, exercise and turnout times are kept generally consistent, your horse feels more secure in their environment. A healthy routine also consists of a proper diet, ample hydration and regular exercise. 

A horse’s gastric health can be indicative of the amount of stress they are enduring. Gastric ulcers are painful sores that form in the stomach lining. Stress, both environmental and physical, can increase the likelihood of ulcers.3  

Prevention of ulcers is key. Limiting stressful situations, feeding small meals frequently vs. fewer larger meals, providing continual access to pasture and/or hay via a slow feeder is imperative. Providing a constant supply of forage helps to neutralize stomach acid through saliva production due to the constant chewing.  Horses can only produce saliva via molar pressure, and we know that saliva is nature's best antacid. 3

Try to recognize situations where your horse has shown signs of stress in the past and do your best to address the stressors beforehand. Consider adding UlcerGard® (omeprazole) to your gastric health regime before stress leads to ulcers. ULCERGARD delivers targeted, effective medication, allowing for proven prevention of gastric ulcers for horses with increased stress.5

If you suspect your horse may be dealing with ulcers, ask your veterinarian about the need for a gastroscopy exam. This procedure is the only way to accurately and definitively diagnose the presence and type of gastric ulcers.4 

If your horse is diagnosed with gastric ulcers, ask your veterinarian for GastroGard® (omeprazole). GASTROGARD has been shown to heal or significantly improve ulcers in 99% of treated horses.6 The active ingredient, omeprazole, works to suppress the secretion of gastric acid and gives the ulcer time to heal. FDA-approved GASTROGARD provides omeprazole in a protected paste formulation, allowing it to reach the site of absorption.

Consult with your veterinarian before treating your horse. To learn more about GASTROGARD and ULCERGARD, visit

Unfortunately, stress is something that every horse will experience at some point in their lifetime, no matter if they are a performance horse traveling to horse shows or a retired companion living at home. Understanding the causes, signs and ways you can reduce the amount of stressors may help to keep your horse comfortable and as stress-free as possible.

GASTROGARD IMPORTANT SAFETY INFORMATION: The safety of GASTROGARD paste has not been determined in pregnant or lactating mares. For use in horses and foals 4 weeks of age and older. Keep this and all drugs out of the reach of children. In case of ingestion, contact a physician. Caution: Federal (USA) law restricts this drug to use by or on the order of a licensed veterinarian.

ULCERGARD IMPORTANT SAFETY INFORMATION: ULCERGARD can be used in horses that weigh at least 600 lbs. Safety in pregnant mares has not been determined. Not for use in humans. Keep this and all medications out of the reach of children. In case of ingestion, contact a physician.

1Pro Earth Animal Health, Causes and Effects of Stress in Horses. Available at Accessed February 27, 2023. 

2Le Juene S., Nieto J., Dechant J., Synder J. Prevalence of Gastric Ulcers in Thoroughbred Broodmares in Pasture: A Preliminary Report. Available at Accessed March 7, 2023.

3Young A. Equine Gastric Ulcer Syndrome. Available at,racing%2C%20endurance%2C%20and%20showing Accessed on February 27, 2023. 

4Boehringer Ingelheim, Equine Gastric Health. Available Accessed February 27, 2023.

5McClure S. Equine Gastric Ulcers: Special Care and Nutrition. Available at Accessed February 27, 2023.

6Boehringer Ingelheim, Equine Products. Available at Accessed February 27, 2023.

7ULCERGARD Product Label

8GASTROGARD Product Label

About Boehringer Ingelheim Animal Health USA

Boehringer Ingelheim Animal Health is working on first-in-class innovation for the prediction, prevention, and treatment of diseases in animals. For veterinarians, pet owners, producers, and governments in more than 150 countries, we offer a large and innovative portfolio of products and services to improve the health and well-being of companion animals and livestock.

As a global leader in the animal health industry and as part of the family-owned Boehringer Ingelheim, we take a long-term perspective. The lives of animals and humans are interconnected in deep and complex ways. We know that when animals are healthy, humans are healthier too. By using the synergies between our Animal Health and Human Pharma businesses and by delivering value through innovation, we enhance the health and well-being of both. 

Boehringer Ingelheim Animal Health has deep roots in the U.S. From a start in St. Joseph, Missouri, more than 100 years ago, it has grown to encompass seven sites. Boehringer Ingelheim Animal Health’s portfolio contains widely used and well-respected vaccines, parasite-control products and therapeutics for pets, horses and livestock. 

Learn more about Boehringer Ingelheim Animal Health USA at


GASTROGARD® and ULCERGARD® are registered trademarks of Boehringer Ingelheim Animal Health USA Inc. ©2023 Boehringer Ingelheim Animal Health USA Inc., Duluth, GA. All Rights Reserved. US-EQU-0067-2023