From the VetMed Forum Archives:
DANDIRT asks: "I have a German Shepherd dog, four years old, that began having seizures for no apparent reason. She has cluster seizures, three to eight with each lasting only a few minutes. The dog has been seen by several vets; her blood, liver, and other vitals checked out okay. Due to the number of seizures, she was started on phenobarbital. One year later, the dog still has massive seizures. It is a sad but very frustrating situation to cope with. The vet physicals all checked out fine and no problems were indicated but the dog continues to have seizures. Has anyone else experienced this type of situation?"
For more information about seizures in general, please see the Seizures in Pets page
Readers Respond: Living with a dog or cat who has seizures