Dog Seizure: What to Do and When to Rush to the Vet

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-08-14

Key Takeaways

• Immediate Emergency Triage: Seizures lasting 5 minutes or longer, or two or more seizures within 24 hours, constitute status epilepticus or cluster seizures, respectively, and are life-threatening emergencies requiring immediate transport to an emergency veterinary clinic.
• Urgent Veterinary Consultation: A first-time seizure, even if brief (under 2 minutes) and self-resolving, necessitates a same-day appointment with a regular veterinarian for diagnostic workup to identify potential underlying causes, which can range from toxins to metabolic disorders.
• Critical Owner Actions During Seizure: During a seizure, prioritize safety by moving the dog from hazardous areas, protecting its head with cushioning, and removing nearby objects; crucially, never place hands near the dog's mouth due to reflex biting risk, and do not attempt to restrain the animal's movements.
• Diagnostic Workup Significance: Veterinary evaluation for seizures typically involves a thorough history, physical examination, and diagnostic tests such as blood work (to assess organ function, blood glucose, and electrolytes) and potentially advanced imaging like MRI to rule out structural brain abnormalities, tumors, or inflammation.
• Post-Seizure Management: Following a seizure, maintain a quiet, dimly lit environment for the dog and withhold food and water until fully alert to prevent aspiration; any prescribed anti-seizure medication requires strict adherence to dosage and timing to prevent withdrawal seizures.

If your dog is having a seizure right now, stay calm and read this first. A seizure that lasts 5 minutes or longer is a life-threatening emergency. A dog that has two or more seizures within 24 hours is also an emergency. In either case, call your emergency veterinarian immediately and get your dog to the clinic while the seizure is still happening. Do not wait to see if it stops. Do not try to manage this at home or through a video call. Remote advice cannot replace hands-on treatment for an active seizure.

For a first seizure that stops on its own in under 2 minutes, your dog is still not out of danger. You should call your regular veterinarian the same day. A first seizure can signal an underlying condition that needs diagnosis. Even if your dog seems fine afterward, the cause is unknown until a vet examines them.

During any seizure, your main jobs are to keep your dog safe from injury and to time the event precisely. Do not put your hands near your dog's mouth. A seizing dog cannot swallow its tongue, but it can bite you hard by reflex. Move furniture, stairs, and sharp objects out of the way. Cushion your dog's head with a folded towel if you can do so without reaching near the mouth. Speak softly and dim the lights. Do not restrain your dog's body. Let the movements happen.

Is This an Emergency?

{
 "type": "triage",
 "title": "Urgency triage by severity of signs",
 "tiers": [
  {
   "tier": "danger",
   "label": "Go to an emergency vet now",
   "signs": [
    "Seizure lasts 5 minutes or longer",
    "Two or more seizures in 24 hours",
    "Your dog does not fully wake up between seizures",
    "Your dog has trouble breathing after the seizure stops"
   ],
   "action": [
    "Call the emergency clinic on the way",
    "Do not wait",
    "This is status epilepticus, a state of continuous seizure activity that can cause brain damage or death"
   ]
  },
  {
   "tier": "warn",
   "label": "Book a same-day appointment",
   "signs": [
    "First seizure ever, lasting under 2 minutes",
    "Your dog recovers fully within 10 to 30 minutes",
    "Your dog is acting normally between episodes",
    "You are unsure if the event was a seizure"
   ],
   "action": [
    "Call your regular vet today",
    "They may want to see your dog the same day or refer you to a specialist",
    "Do not wait for a second event"
   ]
  },
  {
   "tier": "safe",
   "label": "Watch at home for a defined period",
   "signs": [
    "A dog with a known seizure disorder has a seizure under 2 minutes, recovers normally, and has no other signs",
    "This happens less often than your vet's stated pattern"
   ],
   "action": [
    "Follow your vet's existing plan",
    "Keep a written log of start time, duration, and recovery",
    "Call your vet if the pattern changes or if seizures come closer together"
   ]
  }
 ]
}

What Is Happening During a Seizure?

A seizure is a burst of abnormal electrical activity in the brain. It causes uncontrolled muscle movements, changes in awareness, or both. A generalized seizure, the type most owners recognize, usually follows a pattern.

First comes the pre-ictal phase, sometimes called the aura. Your dog may seem restless, pace, whine, hide, or stare blankly for minutes to hours before the actual seizure. Not every dog shows this phase. Then comes the ictal phase, the seizure itself. Your dog may fall on its side, paddle its legs, drool, urinate, defecate, or vocalize. The jaw may chomp. The eyes may roll. This phase usually lasts 30 to 90 seconds, though it can feel much longer.

Afterward comes the post-ictal phase. Your dog may seem confused, disoriented, blind, or unsteady. Some dogs pace, some sleep deeply, and some are temporarily restless or aggressive. This recovery phase can last minutes to hours. Seeing your dog like this is frightening, but it is a normal part of the event.

What Could Be Causing This?

The term for a seizure that has no identifiable cause is idiopathic epilepsy. This is the most common reason dogs have repeated seizures, and it often begins between 6 months and 6 years of age. Certain breeds are predisposed, but any dog can develop it. Idiopathic epilepsy is a diagnosis of exclusion, meaning a vet rules out other causes first.

Many other conditions can trigger a seizure. Toxins are a common cause. Chocolate, xylitol, certain plants, rat poison, and some human medications can all cause seizures in dogs. If you suspect your dog ate something toxic, tell your vet immediately. Do not induce vomiting unless a veterinarian instructs you to do so.

Head trauma, brain tumors, infections, and liver or kidney disease can also cause seizures. In older dogs, a brain tumor becomes more likely. In very young puppies, a portosystemic shunt, an abnormal blood vessel around the liver, can be the cause. Low blood sugar, called hypoglycemia, can trigger seizures in small puppies and in dogs with diabetes. Electrolyte imbalances and heat stroke are additional possibilities.

Because the list is long and some causes are life-threatening, a first seizure always requires a veterinary workup. Your vet will take a history, perform a physical exam, and likely run blood tests. Advanced imaging such as an MRI may be recommended if the exam and bloodwork do not explain the seizure. The MSD Veterinary Manual Pet Owner Version explains these diagnostic steps in plain language for owners.

What Not to Do During a Seizure

Never put anything in your dog's mouth. Not your fingers, not a spoon, not a towel. The belief that a dog can swallow its tongue is false. Forcing something into the mouth can break teeth, injure the jaw, or cause you to be bitten.

Do not pick up a large dog mid-seizure. You can injure your own back or drop the dog. Slide a blanket under the dog only if it is safe to do so. Do not hold the dog down or try to stop the limb movements. Restraint does not shorten a seizure and can increase the dog's panic.

Do not give any medication during a seizure. Your dog cannot swallow safely while seizing, and you risk choking or aspiration, which is inhaling fluid or material into the lungs. Seizure-stopping medications exist, but they are given by a veterinarian, often by injection or rectally, and the dose must be calculated for your dog's weight and history. Never give a human medication to a seizing dog.

Do not assume a single short seizure is harmless. Even a brief seizure can be the first sign of a serious problem. The American Veterinary Medical Association's pet owner resources emphasize that any new health event, including a first seizure, deserves a professional evaluation.

What to Record for Your Veterinarian

Write down the exact time the seizure started and the exact time it stopped. Use a phone timer if you can. Count how many seizures occur in a 24-hour period. Note what your dog was doing right before the seizure, such as sleeping, eating, or playing.

Describe the movements you saw. Did your dog fall over? Paddle all four legs or just one side? Drool excessively? Lose bladder or bowel control? Did your dog seem aware of you during the event? How long did recovery take, and what did recovery look like?

Take a video if you can do so safely. A video is extremely helpful to a veterinarian because owners often cannot describe the event accurately while panicking. Do not use a flash, as bright light may worsen the seizure. Keep the video short and keep your own safety in mind.

Bring this log to your appointment. Your veterinarian will use it to decide whether the event was truly a seizure, what tests to run, and whether medication is needed. The American Animal Hospital Association's pet owner guidance recommends keeping a written health record for exactly this kind of situation.

Step-by-Step First Aid During a Seizure

Your job during a seizure is to keep your dog safe and to observe. You cannot stop the seizure once it starts. Do not put your hands near your dog's mouth. A seizing dog is not aware of what is happening and may bite, even a dog that has never shown aggression.

Follow these steps in order:

1. Stay calm and start a timer. Note the exact time the seizure begins. This number is critical for your veterinarian.
2. Move your dog away from danger. If your dog is near stairs, a pool, or a hard edge, gently slide them to a safer spot. Do not lift a large dog during a seizure. Slide them on a blanket or rug if you can.
3. Protect the head. Place a folded towel or a cushion under your dog's head. This prevents injury from banging against the floor.
4. Remove nearby objects. Push furniture, sharp objects, or other pets out of the way. A seizing dog can thrash and injure themselves on a coffee table leg or a metal bowl.
5. Dim the lights and reduce noise. Turn off the television, close curtains, and ask family members to stay quiet. Sensory input can prolong or worsen seizure activity.
6. Do not restrain your dog. Do not hold them down. Restraint does not stop the seizure and can cause panic, overheating, or injury to you both.
7. Do not put anything in the mouth. This includes your fingers, a spoon, or a towel. A dog cannot swallow their tongue. Objects placed in the mouth can break teeth, cause choking, or push the tongue back into the airway.
8. Time the end of the seizure. Note when the convulsing stops. Then note when your dog is fully alert and walking normally again. The recovery period can be longer than the seizure itself.

When to Call an Emergency Veterinarian

Some seizures are brief and stop on their own. Others are medical emergencies that require immediate transport. Use this table to decide your next move.

The most dangerous situation is a seizure that does not stop. When a seizure lasts longer than five minutes, the brain can be damaged and the body can overheat. This is called status epilepticus. It will not resolve on its own. Your dog needs injectable medication from a veterinarian to break the seizure cycle.

If your dog has a seizure that stops but is followed by another one within a few hours, that is also an emergency. Cluster seizures can be harder to control and require prompt veterinary treatment.

What to Measure and Write Down

Before you call the veterinarian, gather specific information. This helps the vet make a faster, more accurate assessment. Keep a notepad near your dog's resting area so you can record details in real time.

Write down these items:

• The exact start time of the seizure.
• The exact stop time of the convulsing.
• What your dog was doing right before the seizure began. Was they sleeping, eating, playing, or barking at something?
• What the seizure looked like. Did your dog fall over, paddle their legs, drool, urinate, or defecate? Did their head tilt to one side?
• Whether your dog lost consciousness. Were their eyes open but unresponsive?
• How long until your dog stood up and walked normally after the convulsing stopped.
• How many seizures your dog has had in the past 24 hours and the time between them.
• Any medications your dog takes, including heartworm prevention, flea products, or prescription drugs.
• Any possible toxin exposure. Did your dog chew on a plant, get into the garbage, or eat chocolate, xylitol, or medication?

Take a video of the seizure if you can do so safely without getting close. A video is extremely helpful to a veterinarian because owners often cannot describe the movements precisely. Do not attempt to film if it distracts you from timing the seizure or keeping your dog safe.

What Happens at the Veterinary Visit

Your veterinarian will start with a physical examination and a detailed history. They will ask about the seizure you observed, your dog's age, breed, and any past illnesses. They will also ask about possible exposure to toxins or head trauma.

The first goal is to stabilize your dog if the seizure is ongoing or if your dog is still disoriented. In an emergency, the veterinarian may give injectable anti-seizure medication to stop the activity. Dosing for these drugs is calculated based on your dog's weight, health status, and the specific drug used. That calculation must come from the treating veterinarian. Never attempt to give your dog human seizure medication at home.

For a first seizure, the veterinarian will likely recommend diagnostic testing. This commonly includes blood work to check organ function, blood sugar, and electrolyte levels. It may also include bile acid testing to evaluate liver function. These tests help rule out metabolic causes such as low blood sugar, liver disease, or toxin exposure.

If blood work is normal, the veterinarian may discuss advanced imaging. An MRI of the brain can identify structural problems such as tumors, inflammation, or scar tissue. A spinal tap may be offered to check for infection or inflammation. These tests require referral to a specialty hospital and often general anesthesia.

The cost of a seizure workup varies widely. A basic blood panel and examination might range from $150 to $400. Advanced imaging such as an MRI can range from $1,500 to $3,500 or more. Emergency treatment for status epilepticus with hospitalization and injectable medications can range from $800 to $2,500. These are general ranges only. Prices vary by region, clinic type, and the complexity of your dog's case. Ask your veterinarian for a written estimate before proceeding with any test.

Home Care After a Seizure

After the seizure stops, your dog will enter a recovery phase. They may seem confused, restless, or temporarily blind. They may pace, bump into walls, or drool. This is normal and can last from minutes to hours.

Keep your dog in a quiet, dimly lit room. Provide fresh water but do not force them to drink. Do not offer food until they are fully alert and walking normally. A dog that is still disoriented can choke on food or water.

Keep your dog away from stairs and other pets for at least a few hours. Their coordination may be off, and another pet may react aggressively to a confused dog.

Do not give any over-the-counter medication or human medication after a seizure. Many human drugs are toxic to dogs. Pain relievers such as ibuprofen or acetaminophen can cause severe organ damage. If your dog needs medication, the veterinarian will prescribe it and give you the exact dose.

If your dog has repeated seizures, your veterinarian may recommend daily anti-seizure medication. These drugs require regular blood monitoring to ensure safe and effective levels. Never stop or change the dose without veterinary guidance. Suddenly stopping anti-seizure medication can trigger severe withdrawal seizures.

The American Veterinary Medical Association provides general guidance on pet health and emergency preparedness, and the MSD Veterinary Manual offers detailed information on seizure disorders in dogs. Use these resources to learn more, but they cannot replace an in-person examination. For any seizure, hands-on veterinary care is required. Remote advice cannot assess your dog's brain activity, blood work, or response to medication. Your veterinarian must see your dog to make a diagnosis and prescribe treatment.

Common Mistakes Owners Make During and After a Seizure

When your dog is seizing, fear can push you into actions that do more harm than good. The most common mistake is putting your hand near the dog's mouth. A seizing dog cannot swallow, but it can bite reflexively. You cannot be bitten by a dog that is "swallowing its tongue," because that is not anatomically possible. Keep your hands away from the face entirely.

Another frequent error is moving the dog during the seizure. Unless the dog is in immediate physical danger, such as at the top of stairs or near a road, leave it where it is. Moving a seizing dog risks injuring both of you. Instead, clear the area of hard objects, turn off loud noises, and dim bright lights.

A third mistake is waiting too long before seeking help. Many owners assume a seizure will stop on its own and wait 10 or 15 minutes. That delay can be dangerous. If a seizure lasts longer than 5 minutes, or if your dog has two or more seizures within 24 hours, this is a medical emergency. Do not wait to see if it stops.

Finally, owners sometimes give food, water, or medication during or right after a seizure. The dog cannot safely swallow during the event, and forcing anything into the mouth can cause choking or aspiration. Wait until the dog is fully alert and standing normally before offering water.

How to Reduce the Chance of Another Seizure

If your dog has had one seizure, the next step is a full veterinary examination. Many underlying causes can be managed once they are identified. Your veterinarian may recommend blood tests, imaging, or referral to a specialist. Do not skip this step, because a first seizure can be a sign of a treatable condition such as low blood sugar, liver disease, or toxin exposure.

For dogs diagnosed with epilepsy, anti-seizure medication is often prescribed. The dose must be determined by your treating veterinarian based on your dog's weight, health status, and response to the drug. Never adjust the dose yourself and never give a human anti-seizure medication. Missing a dose can trigger a seizure, so build a routine. Use a pill organizer or set a phone alarm.

Reduce known triggers where possible. Some dogs seize after stress, sleep deprivation, or sudden changes in routine. Keep feeding and walking schedules consistent. Avoid known toxins such as chocolate, xylitol, and certain plants. Your veterinarian can give you a list specific to your region and your dog's environment.

What Recovery and Ongoing Management Usually Look Like

Recovery time varies. After a single seizure, many dogs are confused, wobbly, or temporarily blind for a few minutes to a few hours. This is called the post-ictal phase. Keep the dog in a quiet, dim room and let it rest. Do not force interaction. Most dogs return to normal within 24 hours.

If your dog is started on medication, expect a stabilization period of several weeks. Your veterinarian will likely schedule follow-up blood tests to check drug levels and organ function. It can take time to find the right dose. Some dogs need dose adjustments, and that is normal.

For dogs with epilepsy, seizures are usually managed, not cured. Many dogs live full, active lives with consistent medication and regular checkups. The goal is fewer, shorter, and less frequent seizures. If your dog has a seizure despite medication, record the details and contact your veterinarian. Do not stop medication suddenly, as this can cause severe withdrawal seizures.

The American Veterinary Medical Association offers guidance on working with your veterinarian for ongoing health conditions, and the MSD Veterinary Manual provides pet owner information on seizure disorders and their management. Use these resources to prepare questions before your follow-up visits.

Frequently Asked Questions

Can my dog die from a seizure? Yes, but it is uncommon with a single seizure. The greater danger comes from prolonged seizures, called status epilepticus, which can cause brain damage, overheating, or heart problems. Seizures lasting more than 5 minutes, or multiple seizures without full recovery between them, are life-threatening. Seek emergency care immediately in those situations. Most dogs survive a single seizure and recover fully, but the underlying cause must be investigated to prevent future episodes.

Should I let my dog sleep after a seizure? Yes. Sleep is part of normal recovery. After the post-ictal confusion fades, many dogs are exhausted and will sleep deeply for hours. Place your dog in a quiet, comfortable area with water nearby. Check on it periodically to confirm breathing is normal and that it can wake and move. If your dog seems unable to wake, is breathing abnormally, or has another seizure, call your emergency veterinarian right away.

How do I know if my dog is having a seizure or just dreaming? A seizure usually involves stiffening, paddling limbs, drooling, loss of bladder or bowel control, and unresponsiveness. A dreaming dog will wake when you call its name or gently touch it. During a seizure, your dog will not respond to you at all. If you are unsure, record a video on your phone. Show it to your veterinarian, who can often tell the difference from the footage.

Can stress cause a seizure in my dog? Stress can trigger a seizure in a dog that already has epilepsy, but stress alone does not cause the first seizure. If your dog has never seized before and has a seizure during a stressful event, the underlying cause still needs investigation. Common triggers in epileptic dogs include loud noises, changes in routine, excitement, and lack of sleep. Reducing these triggers can help, but it does not replace medication.

What should I do if my dog has a seizure at night? Follow the same first aid steps. Keep the dog safe, time the seizure, and do not put your hands near its mouth. If the seizure stops within 5 minutes, let the dog rest and call your regular veterinarian in the morning. If it lasts longer than 5 minutes, or if a second seizure follows, take your dog to an emergency clinic immediately. Do not wait until morning.

Will my dog need medication for life? It depends on the cause. If the seizure was triggered by a toxin or a temporary metabolic issue, treatment of that cause may prevent future seizures. If your dog is diagnosed with epilepsy, long-term medication is usually necessary. Some dogs can eventually reduce their dose under veterinary supervision, but this must be done slowly and carefully. Never stop medication on your own, as withdrawal can cause severe seizures.

Related Clinical & Scientific Guides

• Dog Heatstroke: Emergency Cooling Steps and When to Rush
• Dog Vomiting: When to Call the Vet and What to Do at Home
• How to Make a Dog Vomit Safely at Home: When and How

References and Further Reading

• AVMA Telehealth and Veterinary Telemedicine
• FDA Veterinary Telemedicine Information
• AVMA Pet Owner Resources
• MSD Veterinary Manual Pet Owner Version
• AAHA Pet Owner Resources

Related Articles

• Dog Vomiting: When to Call the Vet and What to Do at Home
• Dog Heatstroke: Emergency Cooling Steps and When to Rush
• Dog Sneezing and Nasal Discharge: When to Call the Vet
• Dog Bite Wounds: When to See a Vet and How to Clean
• Dog Constipation: Signs, Home Remedies, and When to See a Vet

This article is general educational information for pet owners. It is not a substitute for veterinary diagnosis, examination, or treatment. If your pet is showing severe or rapidly worsening signs, contact an emergency veterinary hospital immediately.