A large percentage of
dogs respond to one anti-seizure medication.
For some, one is not enough and they need 2, 3, or 4 others! (I have seen it). It is not excessive to have more than one drug. Each drug works on a different receptor in the brain. The more ways a seizure can be prevented, the more likely the dog is to not have them. We start off giving one and hope they respond, but may need more.