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Low dose zonisamide — Competitive Intelligence Brief

Low dose zonisamide (Low dose zonisamide) competitive landscape: 6 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Anticonvulsant / Antiepileptic agent. Area: Neurology.

marketed Anticonvulsant / Antiepileptic agent Voltage-gated sodium channels, T-type calcium channels, carbonic anhydrase Neurology Small molecule Live · refreshed every 30 min

Target snapshot

Low dose zonisamide (Low dose zonisamide) — Mario Negri Institute for Pharmacological Research. Low-dose zonisamide reduces seizure activity by blocking sodium and calcium channels while inhibiting carbonic anhydrase.

Comparator set (6 drugs)

Auto-detected by same drug class / molecular target / therapeutic area, ranked by phase + recency. Override with ?vs=slug1,slug2,….

DrugGenericSponsorPhaseClassTargetApproval / PDUFA
Low dose zonisamide TARGET Low dose zonisamide Mario Negri Institute for Pharmacological Research marketed Anticonvulsant / Antiepileptic agent Voltage-gated sodium channels, T-type calcium channels, carbonic anhydrase
Adjunctive Zonisamide Adjunctive Zonisamide Eisai Inc. marketed Anticonvulsant / Antiepileptic drug Voltage-gated sodium channels, T-type calcium channels, carbonic anhydrase
Oral Zonisamide Therapy Oral Zonisamide Therapy Affiliated Hospital of Nantong University marketed Anticonvulsant / Antiepileptic drug Voltage-gated sodium channels, T-type calcium channels, carbonic anhydrase
Placebo ZNS Placebo ZNS Impax Laboratories, LLC phase 3 Anticonvulsant / Antiepileptic agent Voltage-gated sodium channels, T-type calcium channels, carbonic anhydrase
Standard dose topiramate Standard dose topiramate Mario Negri Institute for Pharmacological Research marketed Anticonvulsant / Antiepileptic agent Voltage-gated sodium channels, GABA-A receptors, carbonic anhydrase
Topiramate monotherapy Topiramate monotherapy Johnson & Johnson Taiwan Ltd marketed Anticonvulsant / Antiepileptic agent GABA-A receptor; voltage-gated sodium channels
Carbamazepine-Implant Carbamazepine-Implant University of Sao Paulo marketed Anticonvulsant / Antiepileptic agent Voltage-gated sodium channels

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this set.

Patent timeline (forward window)

No upcoming patent expiries for this set.

Sponsor landscape (Anticonvulsant / Antiepileptic agent class)

  1. University of Sao Paulo · 2 drugs in this class
  2. Mario Negri Institute for Pharmacological Research · 2 drugs in this class
  3. Janssen Korea, Ltd., Korea · 1 drug in this class
  4. Johnson & Johnson Taiwan Ltd · 1 drug in this class
  5. Ministry of Health and Sports, Myanmar · 1 drug in this class
  6. Odense University Hospital · 1 drug in this class
  7. UCB BIOSCIENCES GmbH · 1 drug in this class
  8. University Hospitals Cleveland Medical Center · 1 drug in this class
  9. Eisai Korea Inc. · 1 drug in this class
  10. Upsher-Smith Laboratories · 1 drug in this class

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Cite this brief

Drug Landscape (2026). Low dose zonisamide — Competitive Intelligence Brief. https://druglandscape.com/ci/low-dose-zonisamide. Accessed 2026-05-13.

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