Epilepsy in Cavalier King Charles Spaniels

Neurological condition — Cavalier King Charles Spaniel — Small breed

High Risk
Cavalier King Charles Spaniel dog
Prevalence High
Age of Onset 1–5 years
Typical Cost $500–$3000
Category Neurological

What is Epilepsy?

Idiopathic epilepsy is a heritable neurological disorder causing recurring seizures without a structural brain abnormality. It is one of the most common neurological conditions in dogs. Most affected dogs can be well-managed with medication, but the condition requires lifelong treatment and monitoring.

In Cavalier King Charles Spaniels specifically: Idiopathic epilepsy and episodic falling syndrome (a Cavalier-specific paroxysmal disorder) both occur in the breed.
Pet insurance for Epilepsy in Cavalier King Charles Spaniels

Symptoms of Epilepsy

  • Generalized seizures: muscle rigidity, paddling, loss of consciousness
  • Focal seizures: twitching of one body part, fly-biting behavior
  • Post-seizure confusion, disorientation, or temporary blindness
  • Excessive salivation or urination during a seizure
  • Behavioral changes in the hours before a seizure (aura)
When to see a vet: Discuss any concerns about Epilepsy at your dog's next routine wellness visit, or sooner if symptoms are affecting daily activity.

How Is Epilepsy Diagnosed?

Idiopathic epilepsy is diagnosed after ruling out other causes. Blood tests, urinalysis, and sometimes MRI and cerebrospinal fluid analysis are used to exclude metabolic disease, toxins, and structural brain abnormalities. The diagnosis is one of exclusion.

Treatment & Cost

Phenobarbital and potassium bromide are the primary long-term medications. Newer options include levetiracetam and zonisamide. Medication aims to reduce seizure frequency rather than eliminate seizures entirely. Regular blood monitoring for drug levels and liver function is required. Most epileptic dogs live normal life spans with good quality of life.

Typical treatment cost $500–$3,000 (annually for medication and blood monitoring; MRI for diagnosis $2,000–$3,500)
Cover the cost with pet insurance

Most pet insurance plans cover epilepsy treatment in full when the policy is active before diagnosis. Compare plans below.

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