United States· US:70771-1143_e34d1910-1076-499e-8f3e-1cb18e2a39eb
Zonisamide
A zonisamide product containing zonisamide, registered in United States by Zydus Lifesciences Limited. The same ATC class is registered in 18 of our 19 countries.
Checked against FDA National Drug Code directory (United States) on
Informational only — not a medical device.
Where it is registered
Zonisamide is registered in 18 of 19 countries.
Countries holding a registration under ATC N03AX15 (zonisamide), each read from that country’s own register.
- This record: United States, from FDA National Drug Code directory (United States)
- 11 of them publish a price we can compare per daily dose
Zonisamide · ATC N03AX15
18 / 19 countries
- Belgiumprice
- Czechiaprice
- Denmark
- Finlandprice
- Franceprice
- Germany
- Icelandprice
- Ireland
- Italyprice
- Japan
- Netherlands
- Norwayprice
- Polandprice
- Spainprice
- Sweden
- Switzerlandprice
- United Kingdom
- United Statesprice
Price per daily dose
What a daily dose of zonisamide costs, country by country.
Normalised to the WHO defined daily dose (0.4 g), the median price runs from $0.78 in United States to $10.28 in Switzerland — a ×13 gap.
- United States: $0.78 per daily dose (median across products in the class)
- Public list prices, converted to USD at the rate date shown
- US figures are pharmacy acquisition cost (CMS NADAC), not retail
Zonisamide · price per daily dose (0.4 g)
USD · FX 28 Sept 2026
- CH Switzerland$10.28
- IT Italy$2.90
- FR France$1.20
- US United States$0.78 (acquisition cost)
The record
At a glance
FDA National Drug Code directory (United States)- Active substance
- ZONISAMIDE
- Manufacturer
- Zydus Lifesciences Limited
- Country
- United States (US)
- ATC code
- N03AX15
- ATC class
- Zonisamide
- Defined daily dose
- 0.4 g, O
- Reimbursed
- Not published by this register
- Source register
- FDA National Drug Code directory (United States)
- Last checked
- September 27, 2026
Packs & prices · 4
- ndc117077111431100 CAPSULE in 1 BOTTLE (70771-1143-1)
- ndc117077111435500 CAPSULE in 1 BOTTLE (70771-1143-5)
- ndc1170771-1143-1
- ndc1170771-1143-5
Regulatory notes
No shortage, Orange Book or US label notes for this record.
Interactions
239 interactions on record for zonisamide.
Graded by severity as the source publishes them — 43 severe. Severity grades are free for everyone; mechanism and management come with Growth.
- Severity for every pair — free, no plan needed
- The source, licence and sync date on every record
- Mechanism and what to do for each pair — Growth plan
Zonisamide · interactions on record
239 records
- 43 severe
- 105 moderate
- 66 info
Most severe, free to view
- DicycloverineA03AA07severe
- PropanthelineA03AB05severe
- MepenzolateA03AB12severe
- TrospiumA03AB20severe
25 more interactions with mechanism and management, from a commercially licensed source.
Sign in to check- Interaction severity from DDInter 2.0 (Xiong G. et al., Nucleic Acids Res.), licensed CC BY-NC 4.0 — free for non-commercial use only; not covered by the Drug Database commercial licence.
Same medicine, other countries
Zonisamide in 15 other countries
What each register calls a product with the same active substance — salts and hydrates count as the same.
- United KingdomZonegran 50mg capsulesCST Pharma Ltd
- SpainNYZOL 50 MG CAPSULAS DURAS EFGNeuraxpharm Spain S.L.
- CzechiaERSITTINEgis Pharmaceuticals PLC, Budapešť
- FinlandZonegranParanova Oy
- FranceZONEGRAN 50 mg, géluleAMDIPHARM
- NetherlandsZonegran 50 mg, capsules hardAmdipharm Limited
- IrelandZonegran 50 mg hard capsulesAmdipharm Limited
- ItalyZONEGRANAMDIPHARM LTD
Authorised across Europe · EMA
The same active substance is authorised in 25 EEA countries. Names it is sold under:
- Austria · Zonisamid Aristo
- Bulgaria · Зокап
- Czechia · Ersittin, Zonisamid Sandoz
- Germany · Zonisamid 1 A Pharma, Zonisamid Accord
- Denmark · Zonisamid Desitin, Zonisamid Glenmark
- Estonia · Zonisamide Sandoz
- Spain · Nyzol, Zonesme
- Finland · Zonisamide Desitin
- France · Zonisamide Arrow, Zonisamide Neuraxpharm
- United Kingdom (Northern Ireland) · Desizon, Zonisamide Accord
- Croatia · Zocap
- Ireland · Zonisamide Desitin, Zonisamide Rowex
- Iceland · Zonegran, Zonisamide Viatris
- Italy · Zonisamide Doc Generici, Zonisamide Sandoz
- Liechtenstein · Zonegran, Zonisamide Viatris
- Lithuania · Zonisamide Sandoz
- Malta · Zonisamide Doc Generici
- Netherlands · Zonisamide Indoco, Zonisamide Sandoz
- Norway · Zonegran, Zonisamid Desitin
- Poland · Zonisamidum Neuraxpharm
- Portugal · Zonisamida Aristo, Zonisamida Generis
- Romania · Zocap, Zonisamidă Desitin
- Sweden · Zonisamide 1a Farma
- Slovenia · Zocap, Zonisamid Sandoz
- Slovakia · Zonisamide Neuraxpharm
Source: European Medicines Agency, Article 57 product data.
Sourced from a public register and reproduced with attribution. Drug Database is not affiliated with, endorsed by, or a partner of FDA National Drug Code directory (United States). This is an informational data service and not a medical device — verify against the official source of record before any clinical decision.
For developers
The same record over the API, and the raw payload
GET /v1/drugs/e7d0bc5d-dc29-49ba-ae70-7ff263a51c23 GET /v1/drugs/e7d0bc5d-dc29-49ba-ae70-7ff263a51c23?format=fhir
Every response carries last_synced_at, so freshness is a field rather than a promise. Below is exactly what the ingestion wrote, before any presentation — the same JSON the API returns under payload.
{
"route": "ORAL",
"source": "ndc",
"strength": "50",
"substance": "ZONISAMIDE",
"productndc": "70771-1143",
"dosage_form": "CAPSULE",
"dea_schedule": null,
"strength_unit": "mg/1",
"application_number": "ANDA077625",
"marketing_category": "ANDA"
}See everything about zonisamide.
This page is the registration. A free account adds the label text as the regulator wrote it, what it costs per daily dose across the markets that publish a price, a feed of what changes in the registers, and an assistant that answers with its sources. Interaction severity is free; mechanism and management are on the Growth plan. No card, nothing to install.