Along with other breeds the vizsla may be affected by Epilepsy. The 2021 KC Breed Health and Conservation Plan confirms the vizsla’s predisposition, on the basis of US and Australian studies
What is Epilepsy
Epilepsy is a chronic condition that causes repeated seizures. Your vet may suspect that your dog has epilepsy if they have at least two unprovoked seizures more than 24 hours apart