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Tonic-clonic seizure Index

Definition of Tonic-clonic seizure

Tonic-clonic seizure: The classic type of epileptic seizure consisting of two phases to a tonic-clonic seizure -- the tonic phase and the clonic phase. In the tonic phase the body becomes entire rigid, and in the clonic phase there is uncontrolled jerking. Tonic-clonic seizures may or may not be preceded by an aura, and are often followed by headache, confusion, and sleep. They may last mere seconds, or continue for several minutes. Also known as a grand mal seizure.

If a tonic-clonic seizure does not resolve or if such seizures follow each other in rapid succession, seek emergency help. The person could be in a life-threatening state known as status epilepticus. See also: Status epilepticus.

Last Editorial Review: 6/2/2004

Common Misspellings: tonic-clonic siezure

Tonic-clonic seizure Index

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Important Safety Information

Vimpat (lacosamide) is a medicine that is used with other medicines to treat partial onset seizures in patients 17 years of age and older with epilepsy. Vimpat is generally well-tolerated, but may not be for everyone. Ask your doctor if Vimpat is right for you. Antiepileptic drugs, including Vimpat, may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. Call your healthcare provider right away if you have new or worsening symptoms of depression, any unusual changes in mood or behavior, or suicidal thoughts, behavior, or thoughts about self harm that you have never had before or may be worse than before. Please see additional patient information in the Medication Guide at the end of the full prescribing information. This information does not take the place of talking with your healthcare provider about your condition or your treatment. Please see additional Patient Safety Information

Definition of Tonic-clonic seizure

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