Epilepsy in Pets
Epilepsy can affect many animals, including dogs, cats, rabbits, birds, and horses. Seizures can look very different from one animal to another and can be frightening to witness. With the right information and planning, many pets can be supported through seizure management to maintain a good quality of life.
This page brings together practical, detailed information to help you recognize seizures in pets, respond safely, understand causes and treatments, and plan for ongoing veterinary care.
Important note
ESEBC does not provide veterinary medical advice or prescribe medication. This information supports conversations with your veterinarian. We provide support, education, and resources for individuals and families affected by epilepsy. This page is for general informational purposes only and is not intended to provide veterinary care or treat animals directly.
What Seizures Can Look Like
Not all seizures involve full body shaking. Some are subtle and may look like behaviour changes. The way a seizure appears can depend on which part of the brain is involved, how long it lasts, and your pet’s overall health.
In some cases, owners first notice small changes like unusual staring, sudden fear, or repetitive movements before more obvious seizures occur. Recognizing these early signs can help with faster response and better tracking.
Physical Signs
- Loss of consciousness
- Muscle stiffening or jerking
- Paddling movements
- Head tilting or falling over
Behaviour Changes
- Sudden fear or anxiety
- Pacing or restlessness
- Staring or unresponsive
- Clinginess before an event
Body Responses
- Drooling or foaming
- Urination or defecation
- Panting or breathing changes
- Occasional vomiting
After Effects
- Confusion or disorientation
- Temporary blindness
- Extreme hunger or thirst
- Fatigue or agitation
Seizure First Aid for Pets
Knowing what to do during a seizure can help reduce injury and stress for your pet. Many seizures are short, but having a clear plan can make a difficult moment feel more manageable.
During a Seizure
- Stay calm and speak softly to your pet
- Gently move furniture or objects away to prevent injury
- If safe, place something soft under their head
- Dim lights and reduce noise to limit stimulation
- Do not touch the mouth, as pets may bite unintentionally
- Time the seizure from start to finish
What Not to Do
- Do not put your hands near your pet’s mouth
- Do not try to hold or restrain your pet during the seizure
- Do not attempt to give food, water, or medication during the event
- Do not move your pet unless they are in immediate danger
After a Seizure
- Keep your pet in a quiet, dimly lit space
- Expect confusion, pacing, or temporary blindness
- Allow your pet to recover at their own pace
- Offer comfort but avoid overwhelming them
- Record details such as duration, behaviour, and recovery
- Contact your veterinarian if the seizure was unusual or prolonged
Types of Seizures & Phases
Understanding the type of seizure your pet is experiencing can help guide treatment decisions and expectations. Not all seizures look the same, and some can be easily missed without awareness.
Generalized Seizures
- Affect the whole body
- Loss of consciousness
- Stiffening and jerking
Focal Seizures
- Affect one area
- Twitching, chewing, fly-biting
- Unusual behaviour or fear
Cluster Seizures
- Multiple seizures close together
- Higher risk situation
- Often needs urgent care
Pre-ictal (Before)
Restlessness, anxiety, clinginess, or pacing may occur minutes to hours before a seizure.
Ictal (During)
The seizure itself with physical and/or behavioural changes.
Post-ictal (After)
Confusion, blindness, hunger, or fatigue that can last minutes to hours.
Causes of Seizures in Animals
Determining the cause of seizures in pets is an important part of veterinary care. Some animals are diagnosed with epilepsy without a clear cause (idiopathic epilepsy), while others may have an underlying condition that requires specific treatment. Your veterinarian may use history, physical exams, bloodwork, and sometimes imaging to guide this process.
Seizures can have many causes, including genetic factors, brain-related conditions, metabolic imbalances, or toxin exposure. In some animals no clear cause is found, while in others seizures are linked to treatable underlying issues. Identifying the cause helps guide the most appropriate treatment and monitoring plan.
Primary (Idiopathic)
- Genetic or inherited epilepsy
- Common in certain dog breeds
- No structural brain issue identified
Secondary (Brain)
- Head injury or trauma
- Brain tumours or lesions
- Infections (e.g., encephalitis)
- Congenital abnormalities
Metabolic / Systemic
- Liver disease (including shunts)
- Low blood sugar
- Electrolyte imbalances
- Kidney disease
Toxins
- Chocolate, xylitol
- Pesticides/rodenticides
- Some human medications
- Certain plants
Age Considerations
Young animals often have idiopathic epilepsy; new seizures in older animals may need more investigation.
Why Workup Matters
A seizure is a symptom. Exams, bloodwork, and sometimes imaging help determine the cause and guide treatment.
Treatment & Medications
Treatment plans are tailored to each pet. Not every pet will require medication right away, and adjustments are often made over time based on how seizures change.
Treatment depends on seizure frequency, severity, recovery, and overall health.
| Medication | Use | Key Notes |
|---|---|---|
| Phenobarbital | First-line medication | Effective but requires regular bloodwork; may impact liver |
| Levetiracetam (Keppra) | Common alternative or add-on | Well tolerated; XR version may be harder to find in Canada |
| Potassium Bromide | Add-on therapy (mainly dogs) | Takes time to reach effective levels |
| Zonisamide | Alternative option | Used in some cases depending on response |
| Rescue Medications | Emergency use | Used for cluster seizures as directed by a veterinarian |
When Medication Is Started
- Frequent seizures
- Cluster seizures
- Severe or prolonged events
- Difficult recovery
Goals of Treatment
- Reduce frequency
- Reduce severity
- Shorten recovery
- Support quality of life
Animals Affected
Epilepsy is most commonly seen in dogs, but many other animals can also experience seizures. Each species may present differently and require different veterinary approaches to diagnosis, treatment, and long-term care.
Dogs
Dogs are the most commonly diagnosed species with epilepsy, often with no identifiable cause (idiopathic). Seizures typically begin between 1–5 years of age and are often generalized.
- Common in breeds like Labradors, Border Collies, and German Shepherds
- Usually respond well to consistent medication
- Often achieve good long-term quality of life
Cats
Seizures in cats are more likely to have an underlying cause such as inflammation, infection, or brain disease and often require more detailed investigation.
- More commonly focal seizures
- May appear as twitching, chewing, or sudden behaviour changes
- Often require imaging and specialist care
Rabbits
Seizures in rabbits are less common but can be linked to infection, toxins, or neurological conditions. Early veterinary assessment is important.
- May be related to E. cuniculi or trauma
- Symptoms can be subtle or difficult to interpret
- Require careful monitoring and handling
Birds & Others
Seizures in birds and other animals are less common but can occur due to toxins, nutritional issues, or neurological conditions.
- May include tremors, imbalance, or falling
- Often require specialized veterinary care
- Treatment varies widely by species
What Seizures Can Look Like by Animal
The same condition can look different depending on the species. This can make seizures easier or harder to recognize.
Dogs
More likely to have obvious generalized seizures with collapse, stiffening, jerking, paddling, and post-seizure confusion.
Cats
Often show focal signs such as facial twitching, staring, chewing motions, sudden aggression, or unusual repetitive behaviour.
Rabbits
May show loss of balance, paddling, rigidity, or sudden collapse. Episodes can be harder to interpret because rabbits may mask illness.
Birds & Others
Signs may include tremors, falling from perches, wing flapping, loss of coordination, or abnormal posture, and often need species-specific assessment.
Emergency vs Non‑Emergency
Seek Emergency Care
- Seizure longer than 5 minutes
- Multiple seizures within 24 hours (cluster)
- First-ever seizure
- Injury during seizure
- Not returning to normal after recovery period
Contact Your Vet (Non‑Emergency)
- Short seizure with full recovery
- Change in frequency or pattern
- Side effects from medication
- Questions about dose or refills
Questions to Ask Your Veterinarian
Diagnosis
- What is the likely cause?
- Do we need further testing?
- What should we monitor at home?
Treatment
- When should medication start?
- What side effects should I watch for?
- How do we adjust doses safely?
Planning
- What is our emergency plan?
- When should I seek urgent care?
- How do we manage refills and supply?
Frequently Asked Questions
These are some of the most common questions related to seizures and epilepsy in pets.
Can animals live well with epilepsy?
Many animals live full lives with appropriate treatment and monitoring. While seizures may still occur, they can often be reduced and managed in a way that allows pets to remain active and comfortable.
Quality of life is the main goal. This includes maintaining normal routines, appetite, mobility, and comfort. Even pets with ongoing seizures can still enjoy a high quality of life with the right support.
What triggers seizures?
Triggers can include stress, illness, missed medication, toxins, heat, and changes in routine. Some pets are more sensitive to environmental changes or illness.
However, not all seizures have a clear trigger. Keeping a seizure log for your pet can help identify patterns over time and guide adjustments in veterinary care or treatment.
Should I record seizures?
Yes. Recording seizures when it is safe to do so can provide valuable information for your veterinarian.
Include details such as how long the seizure lasted, what it looked like, how your pet behaved before and after, and any possible triggers. This helps guide treatment decisions and track progress over time.
Can I stop medication?
No. Seizure medications should never be stopped suddenly, as this can lead to more severe or frequent seizures.
If changes are needed, your veterinarian will guide a gradual adjustment plan to keep your pet safe and stable.
Cited Sources
- American College of Veterinary Internal Medicine (ACVIM) – Consensus statements on seizure management in dogs and cats
- International Veterinary Epilepsy Task Force (IVETF) – Definitions, classification, and treatment guidelines
- Merck Veterinary Manual – Seizures and epilepsy in animals
- Canadian Veterinary Medical Association (CVMA) – Animal health resources
- Royal Veterinary College (RVC) – Epilepsy in companion animals research
- Veterinary Partner (VIN) – Client education articles on seizures and medications
- Peer-reviewed journals: Journal of Veterinary Internal Medicine; Veterinary Record
This page summarizes general information from veterinary sources and clinical guidance. Always consult your veterinarian for advice specific to your pet.