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PubMed This is a summary of 24 peer-reviewed journal articles Updated
Neurology

Emergency Management, First Aid & SUDEP

At a Glance

During a generalized tonic-clonic seizure, protect the person, time the event, avoid restraint or objects in the mouth, and call emergency services at five minutes or sooner for breathing problems. Taking prescribed medicine consistently helps lower SUDEP risk.

When a generalized tonic-clonic seizure occurs, the priority shifts from daily management to immediate safety and timing. While most seizures end on their own within two or three minutes, they are physically taxing and require a specific sequence of “first aid” and emergency thresholds [1].

Standard Seizure First Aid

If you or someone you care for has a seizure, follow these evidence-based steps to prevent injury:

  • Time the Seizure: Start a timer or look at a clock immediately. The duration determines if the event is a medical emergency [1].
  • Clear Hazards: Remove hard or sharp objects from the immediate area. If the person is wearing glasses, remove them [1]. Loosen tight clothing around the neck.
  • Do Not Restrain: Never try to hold the person down or stop their movements. This can cause bone or muscle injuries [1]. Do not move the person unless there is immediate danger (like water or a busy road).
  • Nothing in the Mouth: It is a myth that someone can swallow their tongue. Placing objects in the mouth can break teeth, cause choking, or result in a bite to the rescuer [1][2]. Do not give food, drink, or oral medicine until they are fully alert.
  • The Lateral Position: Once the rhythmic jerking stops, or if there is fluid/vomit in the mouth, gently roll the person onto their side (the recovery position). This keeps the airway clear [3][4]. Stay with the person until normal awareness returns.

The 5-Minute Rule: Status Epilepticus

A seizure that lasts 5 minutes or longer is no longer considered a typical event. It is a medical emergency called Status Epilepticus [5]. At the 5-minute mark, the brain’s natural “braking” mechanisms may begin to fail, making the seizure harder to stop and increasing the risk of brain injury or breathing problems [6][7].

Call emergency services (911) immediately if:

  1. The seizure lasts 5 minutes or longer [5].
  2. A second seizure starts before the person has fully woken up from the first [5].
  3. The person has difficulty breathing, remains blue in the face, or fails to return toward normal breathing after the jerking stops (begin CPR if they are not breathing normally and the dispatcher advises it) [8].
  4. It is the person’s first known seizure, the person is pregnant, or the person was seriously injured during the event [9].

Rescue Medications and Action Plans

For people with a history of long seizures, doctors often prescribe “rescue medications.” These are fast-acting drugs (usually benzodiazepines) designed to be given by a family member or caregiver to help terminate a prolonged seizure or seizure cluster [5][10].

Common options include:

  • Intranasal Midazolam or Diazepam: A spray delivered into the nose [11].
  • Buccal Midazolam: A liquid placed between the cheek and the gum [12].
  • Rectal Diazepam Gel: A gel administered rectally, often used in younger children [11].

These medications are not meant for every routine seizure. Caregivers must follow your specific, written Seizure Action Plan, which will dictate the individualized timing (e.g., at five minutes, or earlier based on your pattern), the dose, the repeat-dose rule, and emergency-call instructions [13][14]. Call emergency services without delaying for medication when indicated.

Understanding SUDEP Risk

SUDEP stands for Sudden Unexpected Death in Epilepsy. While rare—affecting an estimated average of 1 in 1,000 adults with epilepsy per year, though this varies substantially with seizure frequency and other factors—it is a serious concern for people with generalized tonic-clonic seizures (GTCS) [15][16]. GTCS are the single largest risk factor for SUDEP, especially if they occur frequently or during sleep [15][17].

How to Reduce Your Risk

The most effective way to lower the risk of SUDEP is to reduce the number of tonic-clonic seizures you have [18].

  • Medication Adherence: Taking your medication exactly as prescribed every single day and having regular medication reviews is the best protection [19]. Missing even one or two doses can cause a “rebound” seizure that may be more severe [20].
  • Nocturnal Monitoring (Optional Adjunct): Because many SUDEP events happen during sleep, having a family member nearby or using a clinically validated alerting device may be considered as optional adjuncts. However, consumer smartwatches may miss seizures, and no monitoring device or sleeping arrangement has been proven to guarantee prevention of SUDEP [21][22]. These devices can only alert someone to provide first aid or repositioning.
  • Safe Sleeping Position: If a seizure happens in bed, being found in a “face down” (prone) position increases risk. Caregivers should be taught to roll the person onto their side as soon as it is safe to do so [23][24].

Note: Discussing SUDEP can be frightening, but studies show that patients who are informed about their individual risk and how to manage it feel more empowered to take active steps to stay safe [24].

Common questions in this guide

What should I do when someone has a generalized tonic-clonic seizure?
Time the seizure, clear nearby hazards, loosen tight clothing, and stay with the person. Do not restrain them or put anything in their mouth, and do not give food, drink, or oral medicine until they are fully alert. When the jerking stops, place them on their side if it is safe to do so.
When should I call 911 for a seizure?
Call emergency services if the seizure lasts five minutes or longer, another seizure starts before the person fully wakes up, or the person has breathing difficulty or turns blue. Also call for a first known seizure, a seizure during pregnancy, or a serious injury.
What is status epilepticus?
Status epilepticus is a medical emergency in which a seizure lasts five minutes or longer, or seizures repeat without the person recovering normally between them. Emergency treatment is needed because prolonged seizure activity can increase the risk of breathing problems and brain injury.
When should rescue medicine be used for a seizure?
Rescue medicines are fast-acting drugs, usually benzodiazepines, used for a prolonged seizure or a seizure cluster when prescribed. Give them only according to the person’s written seizure action plan, which states the timing, dose, repeat-dose instructions, and when to call emergency services.
What is SUDEP, and who has a higher risk?
SUDEP means sudden unexpected death in epilepsy and is rare but serious. Generalized tonic-clonic seizures are the largest known risk factor, especially when they occur often or during sleep.
How can I reduce the risk of SUDEP?
Taking prescribed antiseizure medicine consistently and reviewing treatment regularly are the most important ways to reduce seizure-related risk. A trained caregiver, a clinically validated alerting device, or a nearby family member may provide additional nighttime support, but no device or sleeping arrangement guarantees prevention.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Can you provide a written Seizure Action Plan that clearly states the exact minute mark my caregivers should give rescue medication and when they must call emergency services?
  2. 2.Am I a candidate for an intranasal rescue medication, or is a different form more appropriate for me?
  3. 3.Does my seizure history or frequency put me at a higher risk for SUDEP, and how can we specifically optimize my medication to lower that risk?
  4. 4.Are there any clinically validated seizure-alert devices you recommend as an optional adjunct for my nighttime safety?
  5. 5.If I have a seizure, what specific signs should prompt my family to start CPR or call for an ambulance?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

References

References (24)
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This page is for informational purposes only and does not constitute medical advice. Follow your clinician’s written seizure action plan and seek emergency help when the listed warning signs occur.

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