Ask your vet about Zonisamide. It has been long used for humans for seizures and only recently for dogs. I has virtually NO side effects like traditional canine seizure meds. When I adopted one of my Chihuahuas 7 years ago he was having seizures, a few a week so he needed medication. The doc put him on Zonisamide and the seizures virtually ceased to exist. The couple he has had have been so mild I wasn’t even sure if he was having one because the medication toned it down so much.