A dog having a seizure is one of the most frightening things an owner will witness, and almost everyone's instinct in the moment is wrong.
So here is the short version first, for anyone reading this while it is happening.
Right now
Note the time. This is the single most important piece of information.
Film it if you can do so safely. Vets almost never see the event, and a video is worth more than any description.
Clear the space. Move furniture, and move the dog only if it is somewhere genuinely dangerous, the top of stairs, near water, near a heat source. Slide it by the hips rather than lifting.
Keep the room dim and quiet. Turn off the television, ask people to be still.
Stay away from the head.
Never put your hands, a spoon, cloth or anything else in your dog's mouth. Dogs cannot swallow their tongues. A seizuring dog bites involuntarily and with full force, and severe hand injuries happen this way every year.
Most seizures stop on their own in one to two minutes, though it will feel considerably longer.
Afterwards your dog may be disoriented, blind, wobbly, pacing, ravenous or clingy for minutes to hours. That is the post-ictal phase and it is normal. Keep things calm and give it space and water.
When it is an emergency
Go immediately if:
- A seizure lasts more than about five minutes. This is status epilepticus, body temperature climbs, and brain injury accumulates with time
- Cluster seizures, two or more within 24 hours, or seizures repeating without full recovery between them
- This is the first seizure your dog has ever had. Even if it stopped quickly, it needs investigating
- Your dog does not recover normally within an hour or so
- There is any possibility of a toxin or head injury
What is actually happening
A seizure is disordered electrical activity in the brain. What it looks like depends on how much of the brain is involved.
Generalised, the familiar picture: collapse, stiffening, paddling, jaw chomping, drooling, often urination or defecation, unconsciousness throughout.
Focal, subtler and often missed. Twitching of one part of the face or body, repetitive chewing, staring, sudden unexplained fear, or a dog snapping at nothing. Focal seizures can generalise.
Many owners describe a warning phase in the minutes beforehand, clinginess, restlessness, hiding, seeking the owner out. Learning your dog's warning is useful; it buys time to get to a safe space.
Why it is happening
Age at first seizure is the strongest clue.
Six months to six years: idiopathic epilepsy is the most common cause, a diagnosis of exclusion, where no underlying lesion is found. It is frequently inherited and over-represented in some breeds.
Under six months, or over six years: more likely to have a specific identifiable cause, and more likely to need imaging.
Causes worth ruling out:
- Toxins, rat poison, pesticide, some plants, human medication
- Low blood sugar, especially in small breeds, puppies, and diabetic dogs on insulin
- Liver disease, including portosystemic shunt in young dogs
- Kidney disease
- Infection, including distemper and tick-borne disease, both relevant in India
- Brain tumour, particularly in older dogs
- Head trauma
Investigation typically starts with bloodwork and a thorough neurological examination, progressing to advanced imaging where indicated.
The seizure diary
This is the most valuable thing you will do, and almost nobody is told to start one.
For every event, record:
- Date and time it started
- How long the convulsion lasted, not the recovery, the seizure
- What the dog was doing beforehand
- What it looked like
- Whether there was urination or defecation
- How long recovery took
- Anything unusual that day, new food, a walk somewhere different, a missed dose
Why it matters: the decision to start medication, and every subsequent dose adjustment, depends on frequency and pattern. Vets rely almost entirely on owner records because they do not witness the events.
Treatment
Not every dog needs medication. Infrequent, short, isolated seizures are sometimes monitored.
Medication is generally recommended when: seizures occur more often than roughly every four to six weeks, come in clusters, are prolonged, or are severe.
Two things every owner on anti-seizure medication must know:
- Never stop it abruptly. Sudden withdrawal can precipitate status epilepticus. If there is a problem with the medication, that is a conversation with your vet, not a decision to make at home
- Never miss doses. Consistent blood levels are the whole mechanism. Set alarms, keep a chart, keep a buffer supply
The realistic goal is fewer and shorter seizures, not zero. Many well-controlled epileptic dogs still have occasional events, and that is a successful outcome rather than a failure of treatment.
Some dogs are sent home with emergency medication to give at home during a cluster. If that applies to yours, make sure you have been shown how and that everyone in the household knows where it is.
The bottom line
Time it. Film it. Clear the space. Stay away from the mouth.
Five minutes, or two in a day, means go now. A first seizure means go promptly, whatever it looked like.
Start a diary from the first event. It is what the treatment decisions will be built on.
And if your dog is on medication, never stop it suddenly and never let the doses drift.
A dog that has had one seizure and recovered fully is not an emergency, but it is a same-day call. A dog seizing repeatedly, or for more than five minutes, is an emergency now.