Feline Seizure: Causes, Signs, Treatments

Feline Seizure

Feline seizures can be very scary for both you and your feline friend. Although rare in cats, seizures are the most common neurological condition cats suffer from.

Seizures can affect cats of any breed or age, but tend to occur more often in senior cats. Due to the rarity of seizures in cats, not many medications have been developed for this illness.


Feline seizures begin in the part of your cat's brain called the cerebrum, which is responsible for everything from their emotions and behaviours to movement and sensation. As a result of the cerebrums varied functions, each seizure can have very different characteristics.

Feline seizures are usually caused by idiopathic (primary) or symptomatic (secondary) epilepsy. Idiopathic epilepsy is a condition that means seizures occur with no particular cause. Symptomatic epilepsy means that the seizures are caused by another cat health condition. Symptomatic seizures are usually caused by intracranial disease, also known as disease in the brain.

In some cases a cat health problem can be a underlying factor that cause symptomatic seizures. These conditions may include reactive seizure disorders, neoplasia, vascular diseases, inflammatory disease/infections, congenital defects, low oxygen in the blood (anaemia, heart conditions, breathing problems), kidney or liver disorders, high or low blood glucose levels (diabetes mellitus or hypoglycaemia) diabetes in cats, brain tumours, fever and hyperthermia, and brain damage caused by trauma or poor blood flow to the brain.

Other causes of seizures can include consuming certain medications or toxic chemicals like antifreeze, lead and consuming chocolate, which is poisonous to cats.


Finding the primary cause of feline seizures can be very difficult. Your veterinarian will need to conduct several test in order to diagnosis the cause.

An important aspect of diagnosing seizures in cats is to observe the seizure while it is happening so you can clearly and with as much detail as possible recount the events and specific details to your cat's veterinarian.

Your vet will run blood tests to check for other illnesses that may be the cause of the seizures. These tests can include a complete blood cell count, urinalysis, a biochemical profile and a evaluation of infectious disease (FeLV, FIV, FIP, Toxoplasma, Cryptococcus). If after doing the necessary testing your vet is unable to reach a diagnosis with the results of these tests, he/she may refer you and your cat to an internist or neurological specialist.


Convulsions are not the typical seizures that cats suffer from, seizures known as partial complex seizure are much more common. Some signs that your cat may exhibit when experiencing a seizure are;

  • salivation
  • facial twitching
  • running or bumping into things
  • bizarre behavior
  • shaking
  • pacing
  • paddling feet
  • trembling
  • nervousness
  • restlessness
  • head drawn back
  • uncontrollable urination or defecation

It is essential that you take your cat to a veterinarian right away if the seizure seems to be continuous or if your cat has two or more seizures within 24 hours.

Treatment Options

The type of treatment for feline seizures depends on the overall diagnosis that your veterinarian reaches after an evaluation and testing has been completed.

If the diagnosis is epilepsy, anticonvulsant drugs, like Phenobarbital, can be prescribed to help prevent any recurring seizures. Although this drug can be effective, it may cause many side effects including lack of coordination, allergic reaction, excessive thirst and urination.

Your vet may also prescribe diazepam, which requires you to monitor your cat closely when administering, the goal is for you and your vet to decide the lowest dosage that will help prevent your cat’s seizures, based on your observations meanwhile your cat is being given this type of medication.

Diazepam, although effective, has been linked to causing liver problems in cats, so the lower the dosage that can be given, meanwhile still eliminating the seizures; the better it is for your cat. Another medication that is sometimes prescribed to reduce or eliminate feline seizures is potassium bromide, however it also has negative side effects.

If the seizures are a result of an underlying health condition, then your vet will focus on treating the condition. For example, if cancerous tumours are found, your veterinarian will remove them which will hopefully put an end to the seizures.

Although no cat parent wants to see their cat have seizures, it's important to familiarize yourself with the signs of the condition so that you’re prepared and able to care for your feline friend. Feline seizures can be managed with the help and guidance of your cat’s veterinarian; your cat can go on to live a normal, healthy life.

Similar Topics

Common Elderly Cat Health Problems - Discussing several different health problems that affect senior cats and treatment options.

Symptoms And Treatments Of Feline Kidney Disease - A list of different symptoms and treatments for feline kidney disease.

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