Epilepsy in Dogs: Managing Seizures and Quality of Life

Epilepsy is the most common chronic neurological disorder in dogs. Idiopathic (genetic) epilepsy affects approximately 0.6–0.75% of the canine population. Effective anticonvulsant management can significantly reduce seizure frequency and severity.

Key Facts

Canine idiopathic epilepsy has a genetic basis in many breeds including Border Collies, Labrador Retrievers, Belgian Shepherds, and Australian Shepherds
Seizures result from uncontrolled electrical activity in the brain and range from focal twitching to generalised tonic-clonic events
Status epilepticus — continuous seizure lasting over 5 minutes — is a medical emergency that can cause brain damage and death
First-line anticonvulsants include phenobarbitone and potassium bromide; newer agents include levetiracetam and imepitoin
Approximately 60–70% of epileptic dogs achieve significant seizure reduction with appropriate medication
Dogs experiencing cluster seizures (multiple seizures within 24 hours) have a higher risk of status epilepticus
Quality of life for epileptic dogs depends not only on seizure frequency but also on the side effects of anticonvulsant therapy

Welfare Considerations

Epilepsy affects dog welfare through the seizures themselves — which are frightening and physically exhausting — and through the post-ictal period of confusion, disorientation, and sometimes aggression lasting hours after a seizure. Long-term anticonvulsant medication can cause sedation, ataxia, increased appetite and weight gain (phenobarbitone), or behaviour changes. Regular monitoring allows dose optimisation to balance seizure control with medication side effects. Dogs with well-controlled epilepsy on appropriate medication can have excellent quality of life. Those with poorly controlled seizures, especially cluster events or status epilepticus, experience repeated significant distress. Owner education about emergency management is critical to preventing avoidable suffering during breakthrough seizures.

What You Can Do

Keep a seizure diary recording date, duration, and character of all seizures to guide medication adjustment
Ensure you have emergency medication (e.g. rectal diazepam or buccal midazolam) and know when to use it
Attend all scheduled medication monitoring appointments including bloodwork to check anticonvulsant levels and organ function
Contact a veterinary neurologist if seizures are not adequately controlled on first-line medication
Maintain a healthy body weight in epileptic dogs on phenobarbitone as weight gain increases seizure risk