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In the US, Zonisamide (zonisamide systemic) is a member of the drug class carbonic anhydrase inhibitor anticonvulsants and is used to treat Benign Essential Tremor, Migraine Prevention, Parkinsonian Tremor and Seizures.

US matches:

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Antiepileptic agent

Chemical Name


Foreign Names

  • Zonisamidum (Latin)
  • Zonisamid (German)
  • Zonisamide (French)
  • Zonisamida (Spanish)

Generic Names

  • Zonisamide (OS: BAN, USAN, JAN, DCF)
  • AD 810 (IS)
  • CI 912 (IS: Parke-Davis)
  • Fenisoxine (IS)
  • PD 110843 (IS)
  • Zonisamide (PH: USP 38)

Brand Names

  • Excegran
    Dainippon Sumitomo Pharma, Japan; Zentiva, Turkey; Eisai, South Korea
  • Excegran 20%
    Dainippon Sumitomo Pharma, Japan
  • Excemide
    Kyowa Yakuhin, Japan
  • Excemide 20%
    Kyowa Yakuhin, Japan
  • Kinaplase
    Ivax, Argentina
  • Trerief
    Dainippon Sumitomo Pharma, Japan
  • Zonegran
    BB Farma, France; Eisai, Austria; Eisai, Germany; Eisai, Denmark; Eisai, Finland; Eisai, France; Eisai, United Kingdom; Eisai, Greece; Eisai, Hungary; Eisai, Indonesia; Eisai, Ireland; Eisai, India; Eisai, Iceland; Eisai, Italy; Eisai, Lithuania; Eisai, Myanmar; Eisai, Malaysia; Eisai, Netherlands; Eisai, Philippines; Eisai, Poland; Eisai, Portugal; Eisai, Sweden; Eisai, Slovakia; Eisai, Thailand; Eisai, United States; Eisai Farmaceutica, Spain; Eisai Ltd., Norway; Eisai Pharma, Switzerland; Farmagon, Norway; SciGen, Australia


BANBritish Approved Name
DCFDénomination Commune Française
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name

Further information on drug naming conventions: International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.