Zonisamide

Overview

Zonisamide is a sulfonamide anticonvulsant medication primarily used to treat partial seizures in adults. It works by inhibiting sodium channels and reducing current through T-type calcium channels, which stabilizes neuronal activity.

API suppliers (27)

Suppliers of Zonisamide backed by a verifiable FDA Type II Drug Master File. Source: FDA quarterly DMF list.

• COHANCE LIFESCIENCES LTD2 active DMF
• ALIVUS LIFE SCIENCES LTD2 active DMF
• Dipharma Francis SrlItaly1 active DMF
• Dipharma Francis SrlItaly1 active DMF
• Zydus Lifesciences LimitedIndia1 active DMF
• Hetero Labs LimitedIndia1 active DMF
• Hetero Labs LimitedIndia1 active DMF
• Sun Pharmaceutical Industries LimitedIndia1 active DMF
• Zydus Lifesciences LimitedIndia1 active DMF
• Dipharma Francis SrlItaly1 active DMF
• Wockhardt LimitedIndia1 active DMF
• Sun Pharmaceutical Industries LimitedIndia1 active DMF
• Zydus Lifesciences LimitedIndia1 active DMF
• Hetero Labs LimitedIndia1 active DMF
• Dipharma Francis SrlItaly1 active DMF
• Wockhardt LimitedIndia1 active DMF
• Sun Pharmaceutical Industries LimitedIndia1 active DMF
• Zydus Lifesciences LimitedIndia1 active DMF
• Hetero Labs LimitedIndia1 active DMF
• BACHEM INC
• PERRIGO API LTD
• PROCOS SPAItaly
• JUZEN CHEMICAL CORPJapan
• MYLAN LABORATORIES LTD
• Dr. Reddy's Laboratories Ltd.India

Showing 25 of 27 suppliers — see the full list in the app.

Patent & exclusivity (US)

Per the FDA Orange Book (24 approved US products), the latest listed US patent on Zonisamide expires 17 Aug 2038. Generic API sourcing typically opens up once these lapse.

Therapeutic areas