Mamagus,
I'm sorry your baby is sick. We had a dog that had seizures and it is heartbreaking to see...we eventually did put Tasha on Phenabarb because her seizures were long but the vet had us wait for as long as she and we felt comfortable because of the side effects. After a few really long seizures it was worth the risk to us. It's a commitment because you have to keep that certain level of medicine in their system-for us it was twice a day. We were blessed to have a next door neighbor that would come over and give Tash her pill if we were running late or if we would be gone on a day trip. There also has to be blood work done to make sure the level of medicine is at a therapeutic level and to check the function of the liver to make sure it isn't being damaged. The medicine was expensive at the vet but after much cajoling she eventually started calling it into Target where it was a lot cheaper.
If you're there when Finnigan(sorry if I've got the spelling wrong)has a seizure just love on him and be calm. Over time we noticed that Tasha would come over to us when she was getting ready to seiz. Once she was into a seizure she couldn't really respond but I know she was aware of us and the soft tone and stroking seemed to bring her out of it or make the transition easier. She was kind of wiped out for a bit after.
Let us know how he is doing. He's beautiful.