Treating seizures in dogs involves two things: knowing what to do in the moment to keep your dog safe, and working with your vet on a long-term plan to reduce how often seizures happen. Most dogs with epilepsy can be managed well with daily medication, and roughly 60 to 70 percent of treated dogs see their seizure frequency drop by half or more. A smaller number achieve complete seizure freedom.
What to Do During a Seizure
The hardest part of watching your dog seize is accepting that you can’t stop it. The seizure will end when it ends, and no amount of yelling, shaking, or restraining will shorten it. Your job is to prevent injury, not to intervene.
Move your dog away from stairs, furniture edges, and especially water. If other pets are nearby, remove them from the room. Some dogs become confused or aggressive in the minutes after a seizure and may lash out. Do not put your hands near your dog’s mouth. Dogs do not swallow their tongues during a seizure, and you risk a serious bite.
While the seizure is happening, note the time it starts and stops. Pay attention to whether it begins in one part of the body (a twitching eye, one leg jerking) before spreading. This information helps your vet tremendously when diagnosing the type of seizure and choosing treatment.
If the seizure lasts longer than three minutes, start cooling your dog by applying cool (not ice-cold) water to the ears, belly, and feet. Prolonged seizures generate significant body heat, and overheating can cause additional damage. A seizure lasting beyond five minutes, or two or more seizures within 24 hours, is a veterinary emergency. Get to a clinic immediately.
Special Cases: Toy Breeds and Diabetic Dogs
If your dog is a toy breed like a Yorkshire terrier or Maltese, or if your dog is diabetic, the seizure may be caused by low blood sugar rather than epilepsy. If your dog can stand, isn’t vomiting, and seems relatively normal afterward, offer a small meal. If your dog is unresponsive or still actively seizing, rub a small amount of honey or pancake syrup on the gums (carefully, to avoid being bitten) and head to the vet right away.
How Vets Diagnose the Cause
A single seizure doesn’t necessarily mean your dog has epilepsy. Your vet will start with blood work and a chemistry panel to rule out metabolic causes like liver disease, kidney problems, toxin exposure, or low blood sugar. If those come back normal and your dog is between one and five years old, idiopathic epilepsy (epilepsy with no identifiable structural cause) is the most likely diagnosis.
For dogs outside that typical age range, or when seizures are unusually severe or frequent, your vet may recommend advanced imaging like an MRI or a spinal fluid analysis to look for brain tumors, inflammation, or infection. These tests are more expensive and usually require anesthesia, so they’re typically reserved for cases where the basic workup doesn’t provide answers.
Daily Medications That Control Seizures
If your dog has had multiple seizures, your vet will likely recommend starting a daily anticonvulsant. The goal isn’t necessarily to eliminate every seizure. It’s to reduce their frequency and severity enough that your dog’s quality of life stays high. Four medications are commonly used as first-line options: phenobarbital, potassium bromide, zonisamide, and levetiracetam (sold under the brand name Keppra).
Zonisamide and levetiracetam have become increasingly popular because they work well with minimal side effects. Zonisamide is given twice a day and reaches steady levels in the blood within about a week. Levetiracetam is considered very safe, with little to no adverse effects even at higher doses, but its short half-life (around three hours) means the standard formula needs to be given three times a day. That’s a real commitment. The extended-release version cuts dosing to twice daily, which most owners find much more manageable.
Phenobarbital has been the standard for decades and remains effective, but it’s processed by the liver and requires periodic blood monitoring. One challenge with phenobarbital and potassium bromide is that some dogs develop tolerance over time. The liver gradually speeds up how fast it breaks down the drug, requiring higher and higher doses to maintain the same effect. Higher doses generally mean stronger side effects, including increased thirst, hunger, sedation, and weight gain.
Many dogs end up on a combination of two medications, especially if a single drug doesn’t provide enough control. Your vet will adjust doses based on blood levels and seizure logs, so keeping a detailed record at home of every seizure (date, time, duration, what it looked like) is one of the most useful things you can do.
Dietary Approaches: MCT Oil and Ketogenic Diets
There’s growing evidence that what your dog eats can influence seizure frequency. Medium-chain triglyceride (MCT) oil, the same type found in coconut oil, has shown anti-seizure effects in clinical studies. In one trial, dogs with drug-resistant epilepsy were supplemented with MCT oil providing about 9 percent of their daily caloric intake. Thirty percent of those dogs saw their seizure frequency drop by 50 percent or more.
The mechanism appears to involve the way MCTs are metabolized. They’re converted into ketone bodies, which provide an alternative energy source for the brain and seem to have a calming effect on overactive neural circuits. Commercial diets formulated with MCTs for epileptic dogs are available, and some owners add MCT oil directly to their dog’s existing food. If you’re interested in this approach, work with your vet on the right amount. MCT oil can cause digestive upset if introduced too quickly.
MCT supplementation works best alongside medication, not as a replacement. Think of it as an additional tool that may reduce the number of breakthrough seizures your dog experiences.
CBD Oil: Promising but Limited
A clinical trial at Colorado State University found that 89 percent of dogs receiving CBD had a reduction in seizure frequency. That’s an encouraging number, but it comes with context. The reductions varied widely between dogs, and CBD was given alongside standard anticonvulsant medication, not instead of it. CBD also affects how the liver processes other drugs, which can change blood levels of medications like phenobarbital. If you want to try CBD, let your vet know so they can monitor your dog’s medication levels and liver values accordingly.
A Technique You Can Try at Home
There’s a simple physical technique that some veterinarians teach owners: gentle pressure on the eyeballs. Research in both human and veterinary medicine suggests that brief ocular compression activates calming pathways in the brain. The method involves applying light, steady pressure to both closed eyes for five to ten seconds at a time, repeated over five to ten minutes, either when your dog shows pre-seizure signs (restlessness, disorientation, clinginess) or during a seizure itself. If seizures aren’t controlled after five minutes of this technique, it’s time to call your vet. This isn’t a substitute for medication, but some owners find it helpful as one more tool in their kit.
What Long-Term Management Looks Like
Living with an epileptic dog means building a routine. Medication needs to be given at consistent times every day. Missed doses, especially with short-acting drugs like levetiracetam, can trigger breakthrough seizures. You’ll likely visit the vet every few months initially for blood work to check drug levels and organ function, then less frequently once your dog is stable.
Some dogs go months between seizures on the right medication. Others have occasional breakthroughs despite good treatment. The practical benchmark most vets use is whether seizure frequency has dropped by at least 50 percent compared to before treatment started. If your dog hits that mark, the current plan is generally considered successful. If not, your vet may adjust the dose, add a second medication, or explore dietary changes.
Seizures themselves, when brief and infrequent, don’t typically cause lasting brain damage. The real danger comes from prolonged seizures (lasting more than five minutes) or clusters of seizures happening close together. After about ten minutes of continuous seizure activity, the brain enters a self-sustaining state where different chemical pathways take over, making the seizure harder to stop and increasing the risk of permanent harm. This is why timing every seizure matters, and why anything over five minutes warrants an emergency visit.