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  • Updated 04.01.2021
  • Released 05.16.2000
  • Expires For CME 04.01.2024

Zonisamide

Introduction

Historical note and terminology

Zonisamide is chemically classified as a sulfonamide and is unrelated to other antiepileptic drugs. Originally developed in Japan for the treatment of epilepsy, it was later approved in 1989, and has since been licensed in many countries. It was under investigation for cerebral ischemia, but no development has been reported for this indication since 1994. Zonisamide was approved by the Food and Drug Administration in 2000 for marketing as an add-on adult focal epilepsy treatment. It is now approved in Europe as monotherapy for the treatment of partial seizures in adults affected by newly diagnosed epilepsy.

Zonisamide (chemical structure)
(Contributed by Dr. K K Jain.)

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