Dog Seizure: What to Do During & After an Episode

By Sarah Bennett, Certified Animal Nutritionist

Watching your dog seize for the first time is terrifying. The involuntary muscle contractions, the loss of consciousness, the paddling legs — it looks catastrophic, and your instinct is to intervene. But knowing what not to do is just as important as knowing what to do. This guide gives you a clear, evidence-based protocol for the three phases of a canine seizure: the aura (pre-seizure), the ictal phase (the seizure itself), and the post-ictal phase (recovery).

Understanding What a Dog Seizure Looks Like

Seizures can look very different depending on the type and brain region involved.

• Generalised (Grand Mal) seizure: Loss of consciousness, stiff limbs, paddling all four legs, jaw chomping, excessive salivation, loss of bladder or bowel control. Lasts 30 seconds to 3 minutes typically.
• Focal seizure: Only one part of the body is affected — rhythmic facial twitching, one limb jerking, fly-biting behaviour. The dog may remain partially conscious.
• Cluster seizures: Two or more seizures within 24 hours with recovery in between.
• Status epilepticus: A single seizure lasting more than 5 minutes, or back-to-back seizures without full recovery. This is a medical emergency causing permanent brain damage if untreated.

Phase 1: The Aura (Pre-Seizure)

Some dogs show behavioural changes minutes to hours before a seizure: unusual clinginess, anxiety, restlessness, staring into space, or hiding. Recognising your dog's personal pre-seizure pattern allows you to prepare a safe environment before the ictal phase begins.

Phase 2: During the Seizure — Step-by-Step Protocol

Step 1 — Stay Calm

Your dog is unconscious and not suffering in the way it appears. Panic leads to mistakes. Take a breath and act methodically.

Step 2 — Note the Time

Start a timer the moment the seizure begins. Duration is the most critical piece of information for your vet. If you have a phone, start recording video — it helps the vet classify the seizure type and make treatment decisions.

Step 3 — Keep the Dog Safe from Injury

• Clear the surrounding area of furniture, sharp objects, and stairs.
• Place a folded blanket or cushion gently under the dog's head if it is banging against hard flooring.
• Do not restrain the dog's limbs — this does not shorten the seizure and risks injury to you and the dog.

Step 4 — Do NOT Put Anything in the Dog's Mouth

This is the most dangerous common mistake. Dogs cannot swallow their tongues during a seizure. Reaching into a seizing dog's mouth risks severe bite wounds, even from the gentlest family pet. Keep all hands and objects away from the face and mouth.

Step 5 — Reduce Stimulation

Dim lights, turn off the TV, and keep other pets and children away. Sensory stimulation can prolong a seizure in some dogs.

Step 6 — If the Seizure Exceeds 5 Minutes, Call Immediately

Status epilepticus causes brain damage through hyperthermia (body temperature rises rapidly during prolonged seizing) and cellular hypoxia. Call your emergency vet and begin transport while the seizure continues — do not wait for it to stop.

Phase 3: Post-Ictal Recovery — What to Expect

After the seizure ends, your dog will enter the post-ictal phase. This is normal and can last from minutes to several hours.

• Disorientation and confusion — the dog may not recognise you temporarily
• Temporary blindness — usually resolves within minutes to hours
• Extreme thirst and hunger
• Deep fatigue or excessive sleeping
• Restless pacing in some dogs

Speak to your dog in a calm, reassuring voice. Offer water but don't force it. Keep the environment quiet. Do not leave the dog alone during early recovery in case a second seizure occurs.

Causes of Seizures in Dogs

Seizures are a symptom, not a diagnosis. Common underlying causes include:

• Idiopathic epilepsy — the most common cause in dogs aged 1–5, particularly in Border Collies, Labradors, Golden Retrievers, Beagles, and German Shepherds
• Brain tumours (more common in dogs over 5)
• Toxin ingestion (xylitol, mycotoxins, certain rodenticides)
• Hypoglycaemia (low blood sugar)
• Liver or kidney disease causing toxin accumulation
• Head trauma
• Canine distemper virus

After the First Seizure: Next Steps With Your Vet

A single isolated seizure in an adult dog may not require immediate medication, but it always warrants a full veterinary workup: complete blood count, biochemistry panel, urinalysis, and often an MRI or CT scan. If your dog is diagnosed with epilepsy, anti-epileptic drugs (most commonly phenobarbital or potassium bromide) are highly effective at reducing seizure frequency in most patients.