When I was younger, we had a cocker spaniel that would regularly have seizures. We were always told there are a few breeds it's worse in, and purebred dogs were often more prone to them because a lot of purebreds end up having a lot of inbreeding. Not sure if any of that was true or not. We had tried a few meds but nothing helped so we'd just tried to make sure she wouldn't hurt herself when having one. Over the years, she did end up with a droopy left side of her face but the seizures didn't kill her.