Epilepsy in dogs: treatments, seizures and daily monitoring

Dog epilepsy: understanding treatments and organising follow-up

Understanding dog epilepsy and acting from the first seizure

Seeing your dog convulse is distressing. A seizure can have several causes and is not enough on its own to diagnose dog epilepsy. Contact a vet from the first episode. If the seizure lasts and approaches five minutes, if several episodes follow one another, or if the dog does not regain consciousness between them, call emergency services immediately. Do not wait for a time threshold to seek help if the situation is worrying.

This guide covers the signs to watch for, the long-term medications and the limits of so-called natural solutions. Above all, it helps you prepare concrete follow-up: doses actually given, seizures and recovery. A diary complements the care; it is not meant to be used alone to change a prescription.

Quality of life can remain good in some dogs followed for epilepsy, but the response varies. Diagnosis, clustered episodes, tolerance and household constraints all matter. The goal is built together with the vet, without promising a definitive end to seizures.

Dog epilepsy: why this neurological disorder matters in dogs

Canine epilepsy is one of the most common chronic neurological conditions in dogs. It affects the brain, but its consequences concern the whole animal: safety, sleep, behaviour, feeding, physical activity and the bond with the family.

An epileptic seizure corresponds to an excessive and transient electrical discharge in the cerebral cortex. Depending on the area involved, the signs can remain localised or affect the whole body. So some dogs show only twitching of a limb or the face. Others collapse, paddle, drool, urinate or lose consciousness.

The frequency of seizures matters as much as their intensity. A dog that has a short seizure every six months is not managed the same way as a dog that has several seizures in one day. Moreover, closely spaced seizures can promote exhaustion, hyperthermia, injuries and hospitalisation.

This is why structured care changes the prognosis. It often helps reduce the frequency, duration and intensity of seizures. Veterinary recommendations indicate that treatment is generally considered when seizures recur, when they worsen, when they occur in clusters, or when a seizure lasts more than five minutes.

The dogs most affected

Idiopathic epilepsy often appears in young adults, frequently between six months and five years. Some breeds seem more predisposed, notably the Border Collie, the Labrador Retriever, the German Shepherd, the Beagle, the Golden Retriever, the Australian Shepherd and several herding breeds. However, all dogs can be affected.

In a very young puppy, an older dog or an animal showing other neurological symptoms, the vet looks more closely for a metabolic, toxic, inflammatory, vascular or tumoral cause. This is why the age of onset helps a great deal with the medical reasoning.

Causes, symptoms and emergencies during a dog epilepsy seizure

A dog epilepsy seizure can come from primary epilepsy, a brain lesion or a general imbalance that disrupts brain function.

The main possible causes

Vets generally distinguish three situations.

• Idiopathic epilepsy: it occurs without any visible lesion or obvious blood abnormality. A genetic component is often suspected.
• Structural epilepsy: it results from damage to the brain, such as a tumour, a malformation, inflammation, trauma or a vascular accident.
• Reactive seizures: they are triggered by a toxic or metabolic problem, for example hypoglycaemia. On their own they do not constitute epilepsy: their cause must be sought and treated.

Diagnosis therefore relies on the clinical examination, the history of seizures, blood tests and sometimes medical imaging. In some cases, the vet recommends an MRI, a CT scan or a cerebrospinal fluid tap.

The signs before, during and after the seizure

Before the seizure, some dogs change behaviour. They seek contact, become agitated, hide, whine or seem anxious. This phase is sometimes called an aura, even though it remains difficult to confirm in animals.

During a generalised seizure, the dog may fall on its side, lose consciousness, paddle, tremble, drool, urinate or defecate. It may also vocalise. Good news: a dog does not swallow its tongue during a seizure. So you should never put your fingers in its mouth.

After the seizure, the post-ictal phase can last from a few minutes to several hours. The dog may be disoriented, ravenous, temporarily blind, anxious or very tired. This phase provides valuable information to the vet.

What to do during and after the seizure?

Secure the environment without restraining the dog. Move dangerous objects out of the way and prevent a fall down stairs if you can do so without putting yourself at risk. Limit noise and stimulation. Keep children and other animals at a distance. Never put your hand or an object in its mouth.

• Time the episode; do not rely on your impression of its duration.
• Do not give food, water or a tablet during the convulsions.
• Film only if another person can handle safety and the phone call.
• Apply only the personal emergency plan already prescribed and explained.
• Call immediately if the seizure lasts close to five minutes or if seizures recur.

Closely spaced seizures, even separated by an apparent return to normal, require urgent care. Do not wait to have a complete video. After the episode, the dog may be confused and not react as usual. Leave it in a calm, safe space; ask the vet how to organise its transport.

Treatment of canine epilepsy: medications, monitoring and natural options

Treatment of canine epilepsy aims to reduce the frequency, duration and intensity of seizures, while preserving the quality of life of the dog and its family.

Maintenance medications: an individualised decision

Medications are chosen according to the diagnosis, the frequency and severity of seizures, associated conditions and monitoring possibilities. The maintenance treatment and the emergency medication have different roles. An extra dose of the daily treatment does not spontaneously replace the emergency protocol.

Phenobarbital is among the prescribed options. The French SPC for Phenosan provides for clinical monitoring and blood concentrations. Monitoring serves to assess efficacy and tolerance together. Do not conclude there is an overdose from isolated drowsiness, and do not adjust the amount yourself.

Imepitoin is the active substance of Pexion, a prescription-only medicine for dogs registered with the ANMV. Its choice depends on the clinical form; the name of a molecule alone is not enough to know whether it suits your animal. Ask the prescriber what the expected goal is and in which situations a booster is needed.

Potassium bromide is another possibility in certain protocols. The SPC for Libromide describes in particular its use in combination when control under phenobarbital is insufficient. It requires particular monitoring. These examples explain why a comparison of medications cannot be reduced to “natural” or “more powerful”.

If in doubt, consult your veterinarian before any treatment.

Side effects to watch for

Side effects vary depending on the molecule and the dog. The most common include drowsiness, increased appetite, greater thirst, more frequent urination, unsteady gait, digestive disturbances or agitation. Often, certain signs decrease after the first few days. However, they should always be reported.

Never abruptly stop an antiepileptic drug without veterinary advice. A sudden stop can lead to severe seizures. If an adjustment is needed, the veterinarian will propose a gradual and safe change.

Natural solutions, diet and comfort: distinct objectives

A product presented as calming is not automatically an antiepileptic. A dog that seems calmer is not necessarily better protected against seizures. Do not replace a prescribed treatment with a plant, an oil or a food supplement. Show the veterinarian the exact composition of any addition being considered.

A clear routine makes administration and observation easier: planned times, the person responsible, a safe resting place. These arrangements are useful on a daily basis without needing to be credited with anticonvulsant efficacy. Do not make the household feel guilty by presenting every seizure as the consequence of an avoidable stressful event.

Diet should also be discussed before any change. With potassium bromide, the amount of chloride provided by the ration can alter the blood concentrations of the medication. The SPC for Libromide describes this risk. A change of kibble, home-cooked ration or treats should therefore be reported; a gradual transition alone is not enough to manage this interaction.

Do not turn a nutritional lead into a homemade oil-based recipe. The studied preparation, the dog concerned and the associated treatments matter. If a particular diet is proposed, ask about its purpose, how to introduce it and the planned checks. Keep a photograph of its label in the monitoring file.

A useful family monitoring method: three timelines, with no invented score

The memory of a seizure can be imprecise. Organise the information into three separate sections: doses, episode, recovery. You do not need to assign a severity score from 0 to 3; a dated description is easier to interpret and does not give the illusion of a validated medical tool.

• Doses: time actually given, name and prescribed quantity, person who administered it; note any missed dose or vomiting.
• Episode: start time, measured duration, movements observed, consciousness and any video.
• Recovery: behaviour after the seizure and time of return to the usual state, if this occurs.

A house move or an unusual day can be noted in the context, but should not be automatically labelled as a trigger. If you did not see the onset, write “onset not observed”. This clarification is better than a guessed duration. If several people were present, pool your observations without artificially reconstructing a definite account.

At the consultation, ask how the veterinarian would like to receive this logbook. A simple chronological list may be enough. Also mention seizure-free periods and troublesome effects in daily life: sleep, appetite, gait, interactions. Monitoring is not limited to the total number of episodes.

Catalogue products: distinguishing comfort, homeopathy, and crisis management

Zylkene and Anxitane are stress management supplements. They should not be presented as solutions against epilepsy. Agitation after a seizure first requires a veterinary interpretation; it is not necessarily anxiety to be treated with a purchase.

Zylkene: a comfort reference, not an anticonvulsant rescue

The Zylkene 225 mg presentation belongs to the catalogue's range of calming supplements. If a professional recommends it for a separate stress issue, have the presentation and its compatibility with treatments confirmed. Do not use this product to stop a seizure.

Anxitane: clarify why a supplement is being considered

The Anxitane M/L, 30 comprimés listing corresponds to another presentation in the catalogue. It is not an antiepileptic medicine. Mentioning this product demonstrates neither a reduction in seizures nor a necessary association with the baseline treatment.

Before ordering, ask what specific problem is being targeted for improvement and how this result will be assessed. Avoid introducing several supplements at once without advice: this complicates identifying the product actually given and any adverse effects. If the dog seems drowsier, contact the prescriber instead of automatically attributing this change to a beneficial calming effect.

Epileptyl Boiron: a homeopathic option to discuss with the veterinarian

Epileptyl Boiron, solution orale de 30 ml is a homeopathic veterinary medicine intended for dogs and cats, available without a prescription. Its summary of product characteristics (SPC), published by Anses-ANMV, indicates traditional use in disorders of epileptic origin. Its status and use therefore differ from those of the calming supplements Zylkene and Anxitane.

If you wish to consider Epileptyl alongside your dog's care, talk to the veterinarian managing its epilepsy. The SPC describes this traditional use; it does not present clinical results demonstrating a reduction in the frequency or severity of seizures. This mention therefore does not allow promising control of seizures, even those considered mild, nor reducing or replacing a prescribed antiepileptic.

Epileptyl must not be used as a rescue medicine during a seizure. Do not give any liquid by mouth to a dog that is convulsing. Inform the veterinarian of all products administered and keep the prescribed emergency plan.

Preventing relapses: routine, compliance, and safety at home

Prevention mainly relies on treatment regularity, careful observation, and reducing household risks.

Follow the prescribed schedule. An alarm and a shared chart allow a dose to be marked only once it has actually been administered. Store medicines according to their leaflet, in their packaging and out of reach of children and animals. If several people care for the dog, clearly designate who is responsible for each dose.

Next, secure risk areas. Limit unsupervised access to stairs if seizures are frequent. Avoid unsupervised swimming. After a seizure, let your dog recover in a calm, temperate, and dimly lit place.

Finally, prepare an emergency card. It should indicate the dog's name, weight, treatments, doses, schedule, the treating veterinarian's number, and that of the emergency clinic. Place this card near the medicines.

Preparing for the next appointment

Gather the prescription, the seizure log, the used boxes, and the list of supplements. Ask what to do if a dose is missed or vomited and how to plan ahead for a refill. In case of absence, pass the emergency card on to whoever is looking after the dog; they must understand the instructions without having to improvise.

Note down concrete difficulties: impossible schedules, refusal of tablets, transport, or cost of follow-up. Discussing this allows the veterinarian to find a realistic arrangement. This does not justify lowering doses or spacing out check-ups on your own.

Living better with canine epilepsy

Follow-up combines a diagnosis, an appropriate treatment, and reliable observations. Always distinguish seizure control, recovery, and daily comfort. A good log makes communication more precise; it does not replace the planned examination or tests.

Keep the emergency plan accessible and have any unclear instructions clarified. A prolonged seizure, repeated episodes, or an abnormal recovery require promptly contacting the veterinarian again. The decision is based on the dog's actual condition, without waiting for the next scheduled appointment.

Sources

• CHUV, Université de Montréal — crises convulsives.
• CBIP VetCompendium — état de mal et crises en série, 2024.
• CBIP VetCompendium — traitement de fond de l'épilepsie canine, synthèse de 2014 à lire avec les RCP actuels.
• Anses-ANMV — RCP Phenosan 100 mg.
• Anses-ANMV — RCP Libromide 325 mg.
• Anses-ANMV — fiche Pexion 400 mg.
• Anses-ANMV — RCP Epileptyl solution orale, mis à jour le 11 février 2026.