Zonisamide
chemical compound

Zonisamide, sold under the brand name Zonegran among others, is a medication used to treat the symptoms of epilepsy and Parkinson's disease. Chemically it is a sulfonamide. It is most commonly used as an anti-seizure medication in patients with focal or generalized epilepsy.
In 2020, it was the 276th most commonly prescribed medication in the United States, with more than 1 million prescriptions.
Medical uses
Epilepsy
Zonisamide is approved in the United States, United Kingdom, Europe, Australia, Japan, South Korea and other countries as a treatment of focal epilepsy. In the United States it is approved as an adjunctive therapy for patients with focal epilepsy aged 16 and older. However, in Europe, Japan, Australia and South Korea it is also approved for use as monotherapy in focal epilepsy. There is also evidence that zonisamide is effective for the treatment generalized epilepsy (including absence, generalized tonic-clonic, myoclonic and other seizures types) in pediatric and adult patients. Zonisamide has also been found to be safe and effective for patients with Lennox-Gastaut syndrome.
Parkinson's disease
It has been approved for the treatment of the motor symptoms of Parkinson's disease (PD), as an adjunct to levodopa, in a few countries such as Japan.
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This entry incorporates text from “Zonisamide” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.