The most important thing you can give a colicking horse is time, movement, and a call to your veterinarian. Remove all feed immediately, and if your horse’s behavior is only mildly abnormal, walk it for 15 minutes, then monitor for the next 30 minutes. There is one pain-relief medication safe for horse owners to administer at home, but the majority of colic treatments require a veterinarian and specialized equipment.
First Steps Before the Vet Arrives
Colic is not one disease. It’s a catch-all term for abdominal pain, and the causes range from a mild gas bubble to a life-threatening intestinal twist. Because you can’t diagnose the cause yourself, your first job is to keep the horse safe and gather information your vet will need.
Pull all hay, grain, and treats from the stall or paddock. A horse that continues eating while its gut is compromised can make the problem worse. Walking the horse at a calm pace serves several purposes: it distracts the horse from pain, encourages mild gut movement, and prevents the horse from lying down and rolling violently, which owners and veterinarians associate with a higher risk of intestinal displacement. If the horse is too distressed to walk safely or is thrashing on the ground, stop trying to force movement and wait for professional help.
While you wait, take vital signs if you can do so safely. A healthy adult horse has a resting heart rate of 28 to 44 beats per minute, a respiratory rate of 10 to 24 breaths per minute, and a temperature between 99 and 101.5°F. A heart rate climbing above 60 is a red flag. Rates in the 80 to 100 range indicate dehydration and shock, and those horses almost always need emergency referral.
The One Pain Reliever You Can Give at Home
Flunixin meglumine, sold under the brand name Banamine, is the standard pain reliever for equine colic. The oral paste form is safe for owners to keep on hand and administer without a veterinarian present. The dose is 0.5 mg per pound of body weight, given once daily. A single syringe is calibrated in 250-pound increments and treats a 1,000-pound horse once a day for up to three days. Pain relief typically begins within two hours of administration.
One critical safety note: never inject Banamine into the muscle yourself. Intramuscular injection can introduce dormant Clostridium bacteria deep into tissue, triggering clostridial myositis, a severe and sometimes fatal infection. Only 31 to 73 percent of horses that develop this complication survive, and recovery can take months. The oral paste is effective and avoids this risk entirely. If your horse needs injectable pain relief, that’s a job for your vet using an intravenous route.
Do not give more than one dose before your vet examines the horse. Pain medication can mask symptoms that help the veterinarian determine how serious the colic is. A horse that looks comfortable after Banamine may still have a surgical problem brewing underneath.
What Your Veterinarian Will Give
Once your vet arrives, they have a wider toolkit. The specific treatment depends entirely on what type of colic is happening.
For spasmodic colic, where the intestinal muscles are cramping, your vet may administer an antispasmodic drug that relaxes the smooth muscle of the digestive tract. This type of medication works by blocking the nerve signals that trigger gut spasms. One important detail: it temporarily raises the horse’s heart rate, so for about 30 minutes after injection, heart rate can’t be used to judge pain severity.
For impaction colic, where a mass of dry feed material is blocking the large intestine, the go-to treatment is mineral oil delivered through a tube passed into the stomach (a nasogastric tube). The vet can administer up to 4 liters of mineral oil once or twice daily until the blockage clears. This lubricates the contents and helps them pass through. You cannot give mineral oil by mouth yourself because there is a serious risk of the horse inhaling it into the lungs. Tubing a horse is a veterinary procedure.
Intravenous fluids are another cornerstone of colic treatment, especially when a horse is dehydrated or when the vet needs to soften an impaction from the inside. Electrolyte solutions given through an IV catheter rehydrate the horse and help restore normal gut function.
Signs That Mean Immediate Referral
Some colic cases need surgery, and the sooner a horse gets to a surgical facility, the better the outcome. Your vet will assess several indicators, but there are signs you can watch for too. A heart rate that stays above 60 beats per minute despite pain medication is concerning. A horse that produces no manure for many hours, shows worsening or unrelenting pain, or repeatedly tries to roll and thrash is telling you something serious is happening.
When a vet passes a stomach tube and fluid flows back out (called gastric reflux), it typically means there is a blockage in the small intestine. This is a surgical indicator. Horses with small intestinal problems tend to have much higher heart rates and deteriorate faster than those with large-colon issues. The window for successful surgery narrows quickly once bowel tissue starts to lose blood supply.
What Not to Give
Home remedies and supplements marketed for colic are not substitutes for veterinary treatment. Beer, baking soda, colic drenches, and over-the-counter human medications like ibuprofen or acetaminophen are either ineffective or actively dangerous. Ibuprofen and similar human anti-inflammatories are toxic to horses at uncontrolled doses. Drenching a horse (pouring liquid into its mouth) risks aspiration into the lungs.
Even well-intentioned interventions can backfire. Giving water to a horse with an active obstruction may increase pressure behind the blockage. The safest approach is to withhold both food and water during the colic episode until your vet gives the all-clear.
Feeding After Colic Resolves
For simple, uncomplicated colic episodes, horses can return to their normal diet relatively quickly once symptoms stop. Offer water first, and if the horse drinks and seems comfortable, you can begin reintroducing hay.
After a resolved impaction, small and frequent feedings of good-quality grass hay or a low-bulk pelleted feed can start as soon as 3 to 6 hours after the blockage clears. Free-choice hay can resume within 24 to 48 hours if the horse is tolerating food well. A practical approach is to offer about a pound of hay four to six times throughout the day, gradually increasing the amount over several days. Short grazing sessions of 20 to 30 minutes several times daily are another gentle way to reintroduce forage.
Horses that had surgery or a small intestinal problem need a more cautious timeline. Water comes first, followed by small, soft feedings, with a gradual return to a normal diet over 2 to 4 days. Your surgeon will give you a specific refeeding plan based on what was found and repaired during the procedure.