What are seizures in dogs? A complete guide for pet owners

Written by: Anand Sen; Reviewed by: Dr Vinod Kumar Jain

Watching your dog suddenly collapse, stiffen, and lose control of their body is one of the most frightening experiences any pet parent can face, and for new pet parents, witnessing a seizure can be a nightmare. Seizures in dogs often occur without warning, with no time to Google or prepare.

In dogs, seizures are more common than most pet parents think. On Conbun, seizure-related concerns are among the most urgent consultations, especially during late-night emergencies and monsoon seasons.

A seizure in dogs is a sudden, uncontrolled burst of electrical activity in the brain that disrupts normal body function. It can lead to loss of consciousness, muscle convulsions, drooling, paddling movements, and confusion before and after the episode.

This guide will help you learn:

• what seizures actually look like
• what causes seizures in dogs
• and how you can identify different types

What exactly is a seizure in dogs, and what does it look like?

A seizure in dogs is a sudden, uncontrolled electrical disturbance in the brain that disrupts their normal function. It typically looks like a twitch or uncontrollable muscle shaking, leg paddling, jaw chomping, drooling, and sometimes loss of consciousness or involuntary urination.

Seizures occur in three phases:

• A pre-ictal aura (restlessness or clinginess)
• Ictal phase (active convulsion),
• Postictal phase, where dogs appear confused and disoriented. Dogs may also go temporarily blind during this phase.

What Owners Actually See

A typical grand mal seizure, also known as a generalised tonic-clonic epileptic seizure, typically looks like:

• Sudden collapse
• Body stiffening
• Violent jerking or paddling
• Foaming or drooling
• Loss of bladder control
• Loss of consciousness

However, not all seizures look dramatic.

The 3 Phases of a Dog Seizure You Need to Know

1. Pre-ictal phase (Aura)

• Restlessness
• Clingy behaviour
• Hiding or anxiety

2. Ictal phase (Seizure)

• Full convulsion or twitching
• Usually lasts 30 seconds to 2 minutes

3. Postictal phase in dogs

• Confusion
• Temporary blindness
• Pacing or disorientation

This phase often scares owners the most, but it is neurologically normal. According to BMC Veterinary Research, this phase may be very short or could last for several hours to days. It is the stage when the brain returns to normal function.

Clinical Insight

Many first-time pet parents mistake seizures for:

• choking
• fainting
• or “just weakness”

But the key difference? Lack of consciousness combined with uncontrolled movement.

What causes seizures in dogs - is it always epilepsy?

Seizures in dogs are not always caused by epilepsy. While idiopathic epilepsy in dogs is common, especially in young to middle-aged dogs, seizures can also result from brain tumours, liver disease, low blood sugar, toxin ingestion, or infectious diseases. In India, tick-borne illnesses like Ehrlichia and Babesia are underdiagnosed triggers.

1. Idiopathic Epilepsy (Most Common)

According to an article published in Veterinary Clinics: Small Animal Practice, Idiopathic Epilepsy can be seen in dogs between 1 and 5 years of age. This type of seizure is most common during rest or sleep.

"According to Dr Vinod Kumar Jain, a state-verified MVSc Surgeon and a trusted expert on Conbun, “there are many causes of seizures and an affected dog can appear completely normal between seizures, but heredity is thought to play an important role.”

Idiopathic Epilepsy is:

• Often genetic
• Common in:
  • Labrador Retriever
  • Beagle
  • Dachshund
  • Golden Retriever

But it can affect any breed, even cross-breed dogs.

2. Structural Brain Problems

• Brain tumours: Common in older dogs, seizures are actually the first signs
• Hydrocephalus: Fluid accumulation in the brain
• Encephalitis: Life-threatening viral infection in the brain

These fall under: intracranial vs extracranial seizure causes

3. Metabolic Causes

• Low blood sugar in dogs or hypoglycaemia is especially dangerous in puppies
• Liver disease in dogs: Toxins are not filtered out and reach the brain
• Kidney dysfunction
• Electrolyte imbalance: Sodium, potassium or calcium too high or too low

4. Toxic Causes (Very Common in India)

• Pesticides (organophosphates)
• Xylitol (sugar-free products)
• Permethrin exposure
• Some varieties of mushrooms
• Human medications

5. Infectious Causes

• Canine distemper neurological symptoms
• Tick-borne diseases:
  • Ehrlichia
  • Babesia

India-Specific Insight (High Authority)

On Conbun consultations:

A significant number of seizure cases result from parasitic infections in pets, like the tick-borne disease, which is often misdiagnosed as epilepsy initially

Critical Rule

Epilepsy is a diagnosis of exclusion. It is confirmed only after:

• blood tests
• imaging
• infection screening

Types of Seizures in Dogs - A Simple Breakdown

Not all types of seizures look the same. And this is exactly why they’re often misunderstood by dog owners.

Picture this: One dog collapses and paddles like it is swimming. Another one just stares into space, snapping at invisible flies. Both are seizures, but different types.

Type of Seizure	What It Looks Like	Brain Area Affected
Generalised (Grand Mal)	Full-body convulsions, loss of consciousness, paddling legs	Whole brain
Focal (Partial)	Twitching in one limb, facial tics, and abnormal eye movements	One side
Complex Focal	Strange behaviour, staring, aggression, snapping at air	One area (awareness affected)
Tonic-Clonic	Stiffening followed by rhythmic jerking	Whole brain
Myoclonic	Sudden, brief muscle jerks	Whole brain
Atonic (Drop Attacks)	Sudden collapse, loss of muscle tone	Whole brain
Cluster Seizures	Multiple seizures within 24 hours	Whole brain
Status Epilepticus	Seizure >5 minutes or continuous seizures	Whole brain (emergency)

 

Generalised (Grand Mal) Seizures

This one is the classic and the dramatic among all. Also recognisable by many dog parents. A dog falls on their side, its body stiffens, which is followed by rhythmic jerking or paddling. They may drool excessively and urinate or defecate involuntarily. Dogs also lose consciousness during this type of seizure. It lasts 1–3 minutes typically.

Focal Seizures

As per the Veterinary Record, during Focal Seizures, only one part of the body is affected. A dog might repeatedly twitch one front paw, have rapid blinking, or chew at nothing constantly. This type is easy to miss. Many owners mistake this for weird behaviour.

Complex Focal Seizures

As the name suggests, these are similar to focal seizures, but with altered consciousness. A dog might stare vacantly, snap at imaginary flies, run in circles, or act aggressively for no reason. These can look very strange, and many owners might mistake this as overstimulation in dogs.

Cluster Seizures — The Dangerous One

Multiple seizures occurring within 24 hours. Time and frequency may differ, but together they prevent the brain from recovering properly. This is always a vet emergency. If an offline visit is not possible, you can take vet advice online to learn the immediate next steps.

Status Epilepticus — The Emergency

As per NCBI, it is a medical emergency where a single seizure lasts more than 5 minutes or multiple seizures occur with no recovery between them.

It is a life-threatening situation, and without immediate treatment, permanent brain damage can occur.

Which Dog Breeds Are Most Prone to Seizures?

Certain dog breeds have a higher genetic risk of seizures, especially idiopathic epilepsy. Common high-risk breeds include Labradors, Golden Retrievers, German Shepherds, and Beagles, making awareness critical for Indian pet parents.

As per veterinary literature, epilepsy in dogs is not random. Genetics plays a powerful role.

High-Risk Breeds

• Labrador Retriever (extremely common in India)
• Australian Shepherd
• Golden Retriever
• Belgian Shepherd
• German Shepherd
• Border Collie
• Irish Wolfhound
• Hungarian (Magyar) Vizsla
• Belgian Tervuren
• Finnish Spitz
• Petit Basset Griffon Vendéen

According to the BMC Veterinary Research, these breeds are predisposed to idiopathic epilepsy, where seizures occur without a visible structural cause.

Small Breed Risk

Smaller breeds like:

• Chihuahua: apple dome head
• Pug: compressed face
• Maltese: small size risk

These factors can lead to defects and structural brain issues like hydrocephalus. In addition, these breeds are also at risk of metabolic triggers, such as low blood sugar

If your dog breed is on this list, it does NOT mean that it will develop seizures.

However, it does mean that you should recognise early warning signs faster than most owners.

Signs and Symptoms of a Seizure in Dogs

Dog seizure symptoms range from full-body convulsions and loss of consciousness to subtle signs like staring, twitching, or unusual behaviour. Recognising both obvious and hidden signs is critical for early diagnosis.

Sometimes the signs may be obvious, and sometimes they may be subtle. Here are the signs:

During the Seizure

• Sudden collapse
• Loss of coordination/consciousness
• Muscle stiffening (tonic phase)
• Rhythmic jerking (clonic phase)
• Excessive drooling
• Paddling movements
• Jaw chomping
• Involuntary urination or defecation

Subtle Signs (Often Missed)

• Staring at space
• Rapid blinking
• “Fly-biting” (snapping at air)
• Twitching in one limb
• Sudden unexplained falling
• Strange repetitive behaviour similar to overstimulation

After the Seizure (Post-Ictal Phase)

• Confusion
• Bumping into objects
• Temporary blindness
• Excessive hunger or thirst
• Extreme fatigue
• Temporary weakness, especially in the limbs
• Vocalisation

A seizure episode itself is short. But the recovery phase is often the one that confuses owners

What to Do If Your Dog Has a Seizure - Step-by-Step First Aid

Stay calm, time the seizure, keep your dog safe, and avoid touching their mouth. Seek veterinary help if the seizure lasts more than 3–5 minutes or repeats within 24 hours.

Dr Vinod Kumar Jain, a state-verified MVSc Surgeon, suggests the following Do’s and Don’ts 

DO This

1. Stay calm and do not panic
2. Note the time immediately from the start of the seizure
3. Clear nearby hazards like furniture or sharp objects to avoid injuries
4. Sit close (don’t restrain), your calm presence will help
5. Record the seizure (very important); a video is invaluable for the diagnosis
6. Speak softly; use a calming, reassuring tone. You will be surprised to know that even unconscious dogs respond to familiar voices
7. Contact a vet, even if your dog seems fine now.

DON’T Do This

• Don’t put anything in your dog’s mouth
• Don’t restrain your dog; Seizures cannot be stopped by restraining them
• Don’t panic and scream. It will stress your dog more.
• Avoid giving medication without guidance
• Avoid leaving your dog alone immediately after the episode

Emergency Signs

If you’re thinking about when to consider an online vet consultation, these are the emergency signs:

• Seizure lasts more than 5 minutes
• Multiple seizures occur in 24 hours
• No recovery between episodes
• Breathing difficulty
• First-ever seizure
• Suspected toxin exposure

Smart Action (India Context)

If you’re unsure:

Use a 24-hour online vet. Get instant help via online vet consultation. This not only saves critical time but also offers you confidence to deal with the situation.

How Do Vets Diagnose Seizures in Dogs?

Veterinarians diagnose seizures through history, blood tests, physical exams and imaging, such as MRI. Epilepsy is diagnosed only after ruling out all other causes.

Step 1: History

The vet will ask:

• Duration of seizure
• Frequency
• Behaviour before the episode
• Toxin exposure
• Age and breed

This is why videos matter.

Step 2: Physical & Neurological Exam

• Reflex testing
• Coordination assessment
• Brain function evaluation

Step 3: Blood & Urine Tests

Checks for:

• Liver disease
• Kidney issues
• Blood sugar levels
• Electrolytes

Step 4: Imaging

• MRI - gold standard
• CT scan - alternative

Step 5: CSF Analysis

Detects:

• infections
• inflammation

Final Diagnosis

If all tests are normal:

Likely idiopathic epilepsy

Faster Guidance

A veterinary doctor online consultation can help you:

• understand test urgency
• interpret symptoms early

Seizure Medications for Dogs - What You Should Know

Medications don’t cure epilepsy but are effective at reducing the frequency and intensity of episodes. Common options include phenobarbital, levetiracetam, and potassium bromide.

Common Medications

Medication	Use	Notes
Phenobarbital	First-line	Requires liver monitoring
Levetiracetam (Keppra)	Safer option	Fewer side effects
Potassium Bromide	Add-on	Slow acting
Zonisamide	Resistant cases	Advanced therapy
Gabapentin	Add-on	Sedation possible

Important Rules

• Do not stop medication suddenly
• Constant blood work is mandatory
• Combination therapy is common

Treatment Goal

Reduce seizures by 50% or more and improve quality of life

Access to Treatment

With an online vet prescription, vets can:

• adjust medication
• guide dosage
• monitor progress

While caring for dogs with seizures, the most important thing owners can do is to support them throughout this journey, whether it's with medications, therapy, or even behavioural treatment. Your dog needs you more than the medications.

Can CBD Oil Help Dogs with Seizures?

CBD oil may reduce seizure frequency when used alongside medication, but it is not a replacement for prescribed treatment.

A 2019 study conducted at Colorado State University found that 89% of dogs who received CBD in the clinical trial showed a reduced frequency of seizures.

India Reality

CBD products exist, but are:

• Legally unclear
• Quality varies

You will never even know whether the product contains CBD or some other unregulated item. So, source only through verified dealers and only with a vet’s prescription.

Vet Recommendation

• Always consult a vet first
• Never replace medication
• Use only pet-safe, THC-free products

Diet and Nutrition for Dogs with Seizures

Diet plays a role in seizure control. Stable nutrition, omega-3 fatty acids, and MCT oils may help, while toxins and inconsistent feeding increase risk.

Avoid

• Xylitol
• Artificial additives
• Highly processed food
• Irregular feeding times

Helpful Additions

• Omega-3 fatty acids
• MCT oil
• Balanced home-cooked meals

India Tip

If you are considering home-cooked diets, ensure that they are vet-approved recipes, consistent, and nutritionally complete

How to Keep a Dog Seizure Log (And Why It Matters)

A seizure log helps vets track patterns, triggers, and treatment effectiveness-making it one of the most powerful management tools.

What to Record

• Date and time
• Duration
• Type of seizure
• Triggers
• Medication changes
• Video reference
• Recovery time

Tools

• Notes app
• Google Sheets
• Pet tracking apps

Key Benefit

Better diagnosis
Better treatment decisions

Cluster Seizures and Status Epilepticus - What You Need to Know

Cluster seizures (multiple in 24 hours) and status epilepticus (lasting >5 minutes) are life-threatening emergencies requiring immediate veterinary care.

Cluster Seizures

• 2+ seizures within 24 hours
• No time for the brain to recover properly
• Risk escalates rapidly

Status Epilepticus

• Seizure > 5 minutes
• Or continuous seizures

Why It’s Dangerous

• Brain damage risk
• Overheating
• Cardiac stress

What To Do

• Time immediately
• Use emergency medication (if prescribed)
• Focus on calming your dog
• Rush to vet immediately

Cluster seizures and Status Epilepticus are always dog health emergencies and thus should be dealt with promptly.

Final Thoughts

A seizure can be the most frightening thing pet parents see their dogs go through.

Here’s what matters:

You are not helpless. With the right knowledge:

• You can respond correctly
• You can reduce risk
• You can improve your dog’s life

Whether it’s a midnight emergency or a recurring concern:

• Get clarity through an online vet consultation
• Access a 24-hour online vet
• Use a trusted platform for a veterinary doctor online consultation
• Get timely care with an online vet prescription

When it comes to seizures, every second matters. And the right advice at the right time can save an innocent life.