Zonisamide

Chemical formula: C₈H₈N₂O₃S  Molecular mass: 212.226 g/mol  PubChem compound: 5734

Active ingredient description

Zonisamide is a benzisoxazole derivative with antiepileptic and anticonvulsant activity. The mechanism of action of zonisamide is not fully elucidated, but it appears to act on voltage-sensitive sodium and calcium channels, thereby disrupting synchronised neuronal firing, reducing the spread of seizure discharges and disrupting subsequent epileptic activity.

Medicine classification

This medicinal substance has been classified in the anatomical therapeutic chemical (ATC) classification according to its main therapeutic use as follows:

ATC code Group title Classification
N03AX15 Zonisamide N Nervous system → N03 Antiepileptics → N03A Antiepileptics → N03AX Other antiepileptics
Discover more medicines within N03AX15

Product monographs

Competent medicine agencies globally have authorized commercialization of this active ingredient according to these medication package inserts (MPIs):

Title Information Source Document Type  
ZONEGRAN Hard capsule European Medicines Agency (EU) MPI, EU: SmPC

Structural formula

Graphic representation of the active ingredient's molecular structure

External identifiers

CAS Substance: 68291-97-4
DrugBank Drug: DB00909
KEGG Drug: D00538
PubChem Compound: 5734
RxNorm Ingredient: 39998
SNOMED-CT Concept: 125693002
Zonisamide (substance)
UNII Identifier: 459384H98V
ZONISAMIDE

Medicines

Zonisamide is an active ingredient of these brands:

United States (US)

Australia (AU)

Austria (AT)

Croatia (HR)

Cyprus (CY)

Estonia (EE)

Finland (FI)

France (FR)

Germany (DE)

Ireland (IE)

Italy (IT)

Japan (JP)

Lithuania (LT)

Netherlands (NL)

Poland (PL)

Romania (RO)

Spain (ES)

Turkey (TR)

United Kingdom (UK)

Note the following: The list of brand names is continuously updated, and thus does not include the total of products circulating worldwide.

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