Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of Seizure, atonic

Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026

Seizure, atonic: A seizure in which the person suddenly loses muscle tone and cannot sit or stand upright. Also known as drop attack and drop seizure.

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