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Generalized Tonic Clonic Seizures

Medically reviewed by Drugs.com. Last updated on Jul 7, 2024.

A generalized tonic-clonic seizure may also be called a grand mal seizure. A seizure means an abnormal area in your brain sometimes sends bursts of electrical activity. A generalized seizure affects both sides of your brain. Tonic and clonic are phases that happen during the seizure. The tonic phase causes your muscles to become stiff. You lose consciousness and may fall down. The clonic phase causes convulsions (repeated muscle contractions). A seizure may last from a few seconds up to 3 minutes. It is an emergency if it lasts longer than 5 minutes.

DISCHARGE INSTRUCTIONS:

Call your local emergency number (911 in the US), or have someone else call, for any of the following:

Call your doctor if:

Medicines:

What you can do to prevent a tonic-clonic seizure:

You may not be able to prevent every seizure. The following can help you manage triggers that may make a seizure start:

Treatment options

The following list of medications are related to or used in the treatment of this condition.

View more treatment options

What you can do to manage tonic-clonic seizures:

The following can help you manage the seizures if you have more than one:

How others can keep you safe during a seizure:

Give the following instructions to family, friends, and coworkers:

Follow up with your doctor or neurologist as directed:

If you take antiseizure medicine, you will need blood tests to check the level in your blood. The medicine may need to be changed or adjusted. Write down your questions so you remember to ask them during your visits.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.