A seizure is frightening to watch, but your job is simple: keep your pet safe, do not restrain them, time it, and call your vet. Most single seizures stop on their own within a couple of minutes.
Seizures have many causes — epilepsy, low blood sugar, liver problems, toxins (including some plants and foods like xylitol) and heatstroke among them. A single brief seizure in an otherwise well pet is usually not immediately dangerous, but it always warrants a vet visit to find the cause. Filming the episode on your phone, if you safely can, helps your vet enormously. Seek emergency care if a seizure lasts over five minutes, if several happen close together, or if you suspect poisoning — see our emergency guide.
This is first aid to buy time — it is not a substitute for a vet.
Related: All first-aid guides · Pet poison emergency · Xylitol poisoning
General first-aid information, not veterinary treatment. Always contact your vet or an emergency clinic as soon as possible. Full disclaimer.