If your dog is having a seizure right now, stay calm and keep your hands away from their mouth. Move furniture or hard objects out of the way, lower them gently to the floor if they’re on a raised surface, and time the seizure. A seizure lasting longer than 5 minutes is a veterinary emergency. Most seizures end on their own within one to two minutes, and your main job during that time is to keep your dog safe, not to stop the seizure itself.
What to Do During a Seizure
Your instinct will be to hold your dog or try to comfort them. Resist that urge. Dogs lose consciousness during a generalized seizure and can bite down reflexively without knowing it. Do not put your fingers near their mouth, and do not try to hold their tongue. Dogs cannot swallow their tongues.
Instead, focus on the environment. Push away coffee tables, chairs, or anything your dog could hit while convulsing. If they’re on a bed or couch, slide them to the floor or place cushions around them. Keep other pets and children out of the room. Speak quietly if you speak at all.
Start a timer as soon as you notice the seizure. This is one of the most useful things you can do. Your vet will want to know how long it lasted, and seizures feel much longer than they actually are. If the episode crosses the 5-minute mark, the brain may not be able to stop the seizure on its own, and you need to get to an emergency vet immediately. After 30 minutes of continuous seizure activity, permanent brain damage becomes a real risk.
If possible, record video on your phone. This gives your vet far more information than a verbal description, especially for subtle or unusual seizure types.
What a Seizure Looks Like
The most recognizable type is a generalized (grand mal) seizure, where your dog falls to one side with violent jerking of all four limbs, paddling motions, drooling or frothing at the mouth, and sometimes loss of bladder or bowel control. They’re unconscious through the whole event, even if their eyes are open.
Not all seizures look this dramatic. Focal seizures affect only one area of the brain and can be easy to miss. Your dog might snap at the air as if catching invisible flies, repeatedly clack their jaw, or have a twitching eyelid, lip, or ear. They may stay conscious during a focal seizure, which can make it confusing to recognize. Focal seizures sometimes progress into full generalized seizures.
If your dog has more than one seizure within a 24-hour period, those are classified as cluster seizures, and they need veterinary attention promptly.
What Happens After the Seizure Ends
The recovery period after a seizure, called the post-ictal phase, can be just as alarming as the seizure itself. In a study of dogs with epilepsy, the median recovery time was about 30 minutes, but it ranged from as short as 5 minutes to as long as 3 days in some cases.
During recovery, about 90% of dogs appear disoriented. Roughly 85% are wobbly or clumsy on their feet. More than half show extreme thirst, weakness in all four legs, unusual clinginess, or fearfulness. About 46% of dogs experience temporary blindness, which typically resolves within minutes. Some dogs pace compulsively, vocalize, or show aggression toward people they normally trust. This is not intentional. Your dog is confused and potentially frightened.
Give your dog a quiet, dimly lit space to recover. Offer water but don’t force it. Keep other pets away until your dog is fully back to normal. Avoid loud noises and sudden movements. If your dog seems hungry after the seizure, that’s common too, and a small meal is fine.
When It’s an Emergency
Three situations require an immediate trip to the emergency vet: a seizure lasting longer than 5 minutes, multiple seizures within 24 hours (cluster seizures), or a seizure in a dog that has never had one before. A first-time seizure always warrants a vet visit, even if the episode was short, because it could signal poisoning, a brain tumor, liver disease, or another condition that needs fast treatment.
Some vets prescribe a rescue medication for dogs with a history of cluster seizures. This is typically a sedative you administer at home, either rectally or nasally, to stop a seizure before it becomes prolonged. If your dog has had cluster seizures before, ask your vet about keeping a rescue medication on hand and learn how to use it before you need it.
How Vets Diagnose the Cause
After a seizure, your vet’s first goal is to figure out why it happened. A basic workup includes blood tests and a urinalysis to check for metabolic problems like liver failure, low blood sugar, or kidney disease. These are common causes of seizures that have nothing to do with the brain itself.
If blood work comes back normal, the next step is typically an MRI to look for structural problems in the brain, such as a tumor or inflammation. A spinal fluid analysis can help identify infections or inflammatory conditions affecting the nervous system.
When all of these tests come back clean, the diagnosis is usually idiopathic epilepsy, meaning the brain has a tendency to seize without any identifiable structural cause. This is the most common reason for recurring seizures in dogs between one and five years old.
Long-Term Medication
Not every dog that has a seizure needs daily medication. Vets typically recommend starting anti-seizure drugs when a dog has more than one seizure every six to eight weeks, has cluster seizures, or has had a prolonged episode.
The most commonly prescribed anti-seizure medications for dogs work by calming electrical activity in the brain. The oldest and most widely used option increases the brain’s sensitivity to its own natural calming signals. It’s effective and inexpensive but can cause increased thirst, hunger, urination, and drowsiness, especially in the first few weeks. More significantly, it can affect the liver over time, so dogs on this medication need regular blood work to monitor liver enzymes and drug levels.
A second common option works through a similar calming mechanism and is often added when the first medication alone isn’t enough. A newer alternative has fewer side effects and doesn’t stress the liver the same way, but it’s more expensive and needs to be given more frequently throughout the day.
Finding the right medication and dose often takes time. Your vet will adjust based on seizure frequency and blood work results. The goal is usually to reduce seizure frequency to a manageable level, not necessarily to eliminate seizures entirely. Stopping medication abruptly can trigger severe rebound seizures, so any changes to your dog’s treatment should always happen under veterinary guidance.
Dietary Approaches
Adding medium-chain triglyceride (MCT) oil to your dog’s diet may help reduce seizure frequency alongside medication. In a clinical trial of 21 dogs with epilepsy fed a diet containing 6.5% MCT oil, seizure frequency dropped by 32% and seizure days per month decreased by 42%. Among dogs without cluster seizures, the results were stronger: a 58% reduction in seizure days, with half of those dogs experiencing a greater than 50% decrease in seizures. Two dogs in the study became completely seizure-free.
These results are promising but modest, and MCT oil works best as a complement to medication rather than a replacement. If you want to try it, talk to your vet about the right amount for your dog’s size and diet. Some dogs experience digestive upset when MCT oil is introduced too quickly.
Keeping a Seizure Log
One of the most useful things you can do for a dog with epilepsy is track every seizure in detail. Record the date, time of day, duration, what the seizure looked like, how long recovery took, and anything unusual that happened beforehand. Note any changes in food, treats, medication timing, or stress level. This log becomes invaluable for your vet when assessing whether a treatment is working or needs adjustment. Patterns often emerge over weeks or months that aren’t obvious in the moment.