Idiopathic epilepsy affects approximately 0.75% of dogs, with onset typically between 1-5 years. Breed predispositions: Beagles, Belgian Tervurens, Golden Retrievers, Labrador Retrievers. Use the Neurology Specialist and Drug Formulary for management.
Generalized (tonic-clonic): loss of consciousness, limb rigidity, paddling, salivation, urination/defecation. Focal: facial twitching, one limb, behavioral changes—may progress to generalized.
Cluster seizures: multiple within 24 hours. Status epilepticus: seizure >5 min or multiple without recovery—medical emergency. Rule out metabolic (hypoglycemia, hepatic encephalopathy) and structural causes before diagnosing idiopathic epilepsy.
Warning: Do not put your hands near a seizuring dog's mouth—they cannot swallow their tongue. Move objects away, dim lights, time the seizure. If >5 min or cluster, seek emergency care immediately.
Stay Calm
Time the seizure. Most last 1-2 minutes.
Clear Area
Move furniture, prevent injury. Do not restrain.
Post-Ictal
Dog may be confused, blind temporarily. Keep calm, offer water when alert.
Emergency
Seizure >5 min, cluster, or first seizure—veterinary care.
Treatment indicated if: >1 seizure/month, cluster seizures, or prolonged seizures. First-line: phenobarbital or zonisamide. Levetiracetam (Keppra) as add-on. Bromide (KBr) for refractory cases.
Monitor serum drug levels (phenobarbital, bromide), liver enzymes, and seizure frequency. Adjust dose based on response. Never stop antiepileptics abruptly—taper over weeks.
Dietary therapy (ketogenic, MCT diet) may help some dogs with refractory epilepsy. Discuss with a neurologist.
- Idiopathic epilepsy: 1-5 years onset; rule out metabolic/structural causes.
- First aid: time seizure, clear area, don't restrain, don't put hands near mouth.
- Status (>5 min) or cluster = emergency.
- Phenobarbital, zonisamide first-line; levetiracetam add-on.
- Never stop AEDs abruptly; monitor levels and liver.