Seizures in dogs and cats: what to do and what to avoid
How to behave during a seizure, the criteria that turn it into an emergency and the diary your vet needs in order to decide.
- Audience
- Pet owners
- Species
- Dog, Cat
- Scope
- Valid everywhere
What you need before you start
- Un orologio o un cronometro sul telefono, perché la durata della crisi è il dato che orienta tutto il resto
- Uno spazio libero da spigoli, scale e acqua dove la crisi possa esaurirsi senza traumi
- Il numero della clinica e del pronto soccorso veterinario notturno, raggiungibili senza cercarli
- Il nome dei farmaci in corso e la data dell'ultima somministrazione, se l'animale è già in terapia
Watching a seizure is the most frightening thing that can happen to someone living with an animal, and the instinctive reaction almost always makes it worse: hands go into the mouth, the animal gets held down, someone runs to the car while the seizure is still going. None of those three actions helps, and the first one sends the owner to the emergency room. Most seizures stop on their own within one or two minutes, and the job of the person watching is small but precise: time it, make the space safe, observe, film, and call when the right criteria are met. First aid does not replace the consultation, and the record of what you saw is worth as much as the seizure itself, because the vet was not in the room.
Recognising a seizure and telling it apart
Not everything that looks like a seizure is one, and the distinction changes the diagnosis. A typical generalised seizure involves loss of consciousness, falling onto one side, stiffness followed by rhythmic paddling of the legs, heavy salivation and often passing urine or faeces. Syncope, a faint of circulatory origin, is shorter, the body stays limp, there are no rhythmic movements and no salivation, and recovery is almost immediate. Tremor from poisoning or pain leaves the animal conscious and responsive.
| Feature | Seizure | Syncope | Tremor or twitching |
|---|---|---|---|
| Consciousness | Absent in the generalised form | Lost and regained within seconds | Preserved, the animal answers to its name |
| Duration | Usually thirty seconds to two minutes | A few seconds to half a minute | Minutes or hours, continuous |
| Muscle tone | Stiffness followed by rhythmic movement | Limp body, no rhythmic movement | Fine shaking or localised contractions |
| Salivation | Heavy and foamy | Usually absent | Variable, often absent |
| Urine or faeces | Often passed involuntarily | Rare | Rare |
| After the episode | Disorientation, sometimes prolonged | Quick return to normal | No confusion phase |
What to do during the seizure
Check the time and start the stopwatch
This is the first move, before you even go closer. Duration is the figure that decides whether you are watching an event that stops by itself or an emergency. From memory, afterwards, every seizure feels like ten minutes: almost none of them are.
Move the hazards, not the animal
Push away chairs, side tables, heavy objects and bowls. Close the door to the stairs and take the other pets out of the room, since they may react badly. Move the animal only if it is at the top of stairs, near water, on a road or on a surface it can fall from: in that case drag it on a blanket rather than lifting it.
Keep your hands away from the mouth
A seizing animal cannot swallow its tongue: that is a false belief inherited from human medicine fifty years ago. The jaws clamp with enormous involuntary force and a bite at this stage is deep and tearing. Nothing should be pushed between the teeth.
Lower the lights and the noise
Switch off bright lights, the television and music, and ask everyone to speak quietly. Sensory stimulation does not cause the seizure, but it makes the recovery phase longer and more agitated.
Film the seizure from a metre away
Frame the whole body, not just the head, and keep recording for the first seconds after it stops. If you are alone, prop the phone on a piece of furniture and let it record while you manage the space.
Protect the head without restraining movement
If the head is banging on a hard floor, slide a flat cushion or a folded towel underneath. Do not hold the legs still and do not squeeze the chest: restraint does not shorten the seizure and raises the risk of muscle injury.
Note three details while you watch
Which part of the body the movement started from, whether the head was turned to one side, and whether the eyes were open. The vet uses these to work out whether the seizure has a localised starting point, which changes the tests that follow.
Stop the clock when the movements end
The seizure ends when the rhythmic movements stop, not when the animal gets up. Write the duration on your phone at once: in the confusion of the following minutes the number gets lost.
Take the temperature once handling is safe again
After a long seizure, muscle activity drives body temperature up. If it passes 40 degrees, tell the clinic and start gentle cooling with cool water, never ice.
Call the clinic with the data in hand
Report the start time, the timed duration, what the seizure looked like, the temperature, current medication and any exposure to substances. Ask whether you should leave now or can come in later the same day.
What never to do during a seizure
- Do not put fingers, spoons, sticks or cloths between the teeth: it achieves nothing and causes severe bites and broken teeth.
- Do not pour water, milk, honey or sugar into the mouth: swallowing does not work during a seizure and the liquid ends up in the lungs.
- Do not pick the animal up to carry it to the car while the seizure is running, unless it is somewhere dangerous.
- Do not squeeze or immobilise the body to try to stop the movements: the seizure has its own duration and it does not depend on you.
- Do not give human epilepsy drugs or leftover sedatives from other treatments: molecules, routes and timings are not transferable.
- Do not let other animals come close, not even those that have lived with the patient for years.
When a seizure becomes an emergency
| Situation | Urgency | What to do |
|---|---|---|
| A seizure lasting more than five minutes | Immediate emergency | Call and go, keep timing it |
| Two or more seizures within twenty four hours | Immediate emergency | Call and go even if the animal seems normal in between |
| No return of consciousness between seizures | Immediate emergency | Transport now, phoning on the way |
| First ever seizure, even a short one | Same day consultation | Book an appointment and bring the video |
| Seizure after contact with a substance or a drug | Immediate emergency | Bring the packaging or a photo of it |
| Temperature above forty degrees after the seizure | Immediate emergency | Gentle cooling and transport |
| Puppy or kitten under six months, diabetic animal, nursing female | Immediate emergency | Give nothing by mouth, leave now |
| Animal already on treatment with more frequent seizures | Contact the same day | Bring the seizure diary and the current doses |
The five minute threshold is not arbitrary: beyond that duration a seizure tends to sustain itself, and the condition is called status epilepticus, which needs intravenous drugs and monitoring. In the same way, two or more seizures close together on the same day define cluster seizures, managed differently from an isolated event. Those are the two numbers to remember when everything else feels confusing.
The phase after the seizure
When the movements stop, a phase begins that can last from a few minutes to a whole day. The animal may appear blind, bump into furniture, walk in circles, fail to recognise people, be intensely hungry or thirsty, unusually affectionate or unusually irritable. This is a normal phase, not a second event: it is managed with quiet presence and the right environment, not with stimulation.
- Stay in the room, seated and quiet, without constant stroking and without calling the animal over and over.
- Keep the lights low and clear the floor of objects it could trip over while walking disoriented.
- Block access to stairs, balconies, pools and doors onto the street until the gait is steady again.
- Offer water only once it stands and swallows normally, and food no sooner than an hour after the seizure ends.
- Do not leave it alone with other animals until recovery is complete, because behaviour in this phase is unpredictable.
- Note the time it returned to normal: the length of recovery is as clinically useful as the length of the seizure.
The seizure diary your vet needs
The decision to start or change antiepileptic treatment rests on how often and how badly seizures occur, not on a single event. The criteria most often used consider two or more seizures within six months, the appearance of cluster seizures, an episode of status epilepticus, or an unusually long or severe recovery phase. Without a reliable log those criteria cannot be applied, and treatment ends up being decided from memory.
- Date and start time, with the timed duration of the movements.
- A short description: where the movement started, consciousness present or absent, urine or faeces passed.
- Length of the recovery phase and the behaviours seen during it.
- Context: sleep, waking, play, exertion, travel, thunderstorm, change of environment.
- Medication given in the previous twenty four hours, with times and the doses already prescribed.
- Any missed doses: they are the single most common reason a stable animal starts seizing again.
- A link to the video, so the neurologist can watch the episode instead of reconstructing it.
Frequently asked questions
- Can an animal choke on its tongue during a seizure?
- No. The tongue is anchored to the floor of the mouth and cannot be swallowed. The myth comes from human medicine decades ago and has been abandoned there too. Putting hands or an object between the teeth invites deep bites, fractured teeth and the risk of fragments reaching the airway, which is precisely the danger you were trying to avoid.
- Should I drive to the clinic while the seizure is happening?
- Only if the seizure passes five minutes or repeats without the animal regaining consciousness. In every other case it is better to wait for the movements to stop and for the first minutes of recovery: loading a seizing animal into a car is dangerous for the driver and the patient, and during those two minutes the clinic would be doing nothing different from what you are already doing.
- Does one seizure mean epilepsy?
- No. A single seizure can come from a metabolic problem, a poisoning, a blood pressure disorder, a head injury or a disease affecting the brain, and in many cases it never repeats. That is why a first seizure deserves a consultation and blood work rather than immediate treatment: a diagnosis of epilepsy is built by ruling the other causes out.
- Can I give something sugary if I suspect low blood sugar?
- Not during the seizure and not by mouth. An animal that cannot swallow will inhale any liquid poured in. If low blood sugar is a real possibility, for example in a small breed puppy or a diabetic animal on treatment, say so on the phone and leave immediately: the correction needs a vein and a measured glucose value, not an estimate.
- How long before I can leave the animal alone again?
- Once it walks steadily, recognises people, drinks and eats normally and has had no further episodes for several hours. Before that the risk is not the seizure but a fall: a disoriented animal that climbs stairs or approaches a balcony gets hurt easily. When in doubt, close the critical doors and leave water available in one safe room.
What to do next
Start the stopwatch, clear the space around the animal, keep your hands away from the mouth and film the episode. Call and go if the seizure passes five minutes, if a second one follows within twenty four hours, or if consciousness does not return between episodes. Afterwards record duration, context and recovery time in the diary: it is that log, not your memory, that drives the treatment decisions that follow.
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