Anticonvulsants or antiepileptic drugs (AEDs) are used to stop an ongoing seizure or to decrease the frequency or severity of anticipated future seizures. During a seizure episode or status epilepticus, the route of administration for AEDs is intravenously. This is because of the emergent nature of the treatment.

For long-term maintenance, the oral route is preferred, although absorption may be limited or variable depending on the drug used.

the most common drugs used to treat seizures in dogs are:

• Keppra (levetiracetam)
• Phenobarbital
• Potassium Bromide
• Zonisamide