United States· US:72789-177_373a4c73-f3c2-2c93-e063-6294a90ad5eb

Primidone

A primidone product containing primidone, registered in United States by PD-Rx Pharmaceuticals, Inc.. The same ATC class is registered in 17 of our 19 countries.

ATC N03AA03US label

Checked against FDA National Drug Code directory (United States) on September 27, 2026

Informational only — not a medical device.

Compare price across countriesPer daily dose · free account Ask the assistant about primidoneAnswers with sources · free account Check interactionsSeverity free · mechanism on Growth

Where it is registered

Primidone is registered in 17 of 19 countries.

Countries holding a registration under ATC N03AA03 (primidone), each read from that country’s own register.

This record: United States, from FDA National Drug Code directory (United States)
9 of them publish a price we can compare per daily dose

Search primidone products by name

Primidone · ATC N03AA03

17 / 19 countries

Belgiumprice
Canada
Czechiaprice
Denmark
Finlandprice
Franceprice
Germany
Ireland
Italyprice
Japan
Netherlands
Norwayprice
Polandprice
Sweden
Switzerlandprice
United Kingdom
United Statesprice

Blue: a registration under this ATC code. The ringed marker is this record’s country. Markets marked price publish a price we can compare per daily dose.

Price per daily dose

What a daily dose of primidone costs, country by country.

Normalised to the WHO defined daily dose (1.25 g), the median price runs from $0.86 in Italy to $2.61 in Switzerland — a ×3.0 gap.

3 markets with a comparable price for this class
Public list prices, converted to USD at the rate date shown

Open the full comparison — free account Drug prices for market access

Primidone · price per daily dose (1.25 g)

USD · FX 28 Sept 2026

CH Switzerland$2.61
FR France$0.88
IT Italy$0.86

Median listed price per WHO defined daily dose, in each market that publishes a price. Open the full comparison

The record

At a glance

FDA National Drug Code directory (United States)

Active substance: PRIMIDONE
Manufacturer: PD-Rx Pharmaceuticals, Inc.
Country: United States (US)
ATC code: N03AA03
ATC class: Primidone
Defined daily dose: 1.25 g, O
Reimbursed: Not published by this register
Source register: FDA National Drug Code directory (United States)
Last checked: September 27, 2026

Packs & prices · 2

ndc11
72789-177-30
ndc11
7278917730
30 TABLET in 1 BOTTLE, PLASTIC (72789-177-30)

Regulatory notes

No shortage, Orange Book or US label notes for this record.

Interactions

424 interactions on record for primidone.

Graded by severity as the source publishes them — 129 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

Check primidone against other medicines How interaction checks work

Primidone · interactions on record

424 records

129 severe
199 moderate
8 minor
53 info

Most severe, free to view

RolapitantA04AD14severe
NaloxegolA06AH03severe
NaldemedineA06AH05severe
EliglustatA16AX10severe

35 more interactions with mechanism and management, from a commercially licensed source.

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.

Mechanism and what to do, in the interaction check

Source: DDInter 2.0 · synced 29 Sept 2026. Grades as the source publishes them.

Same medicine, other countries

Primidone in 15 other countries

What each register calls a product with the same active substance — salts and hydrates count as the same.

All primidone products

Authorised across Europe · EMA

The same active substance is authorised in 20 EEA countries. Names it is sold under:

Austria · Mysoline
Belgium · Mysoline
Czechia · Liskantin
Germany · Liskantin, Liskantin Saft
Denmark · Primidon Afortas, Primidon Orifarm
Estonia · Liskantin
Spain · Mysoline
Finland · Primidon Afortas
France · Mysoline
United Kingdom (Northern Ireland) · Enodama, Mysoline
Hungary · Sertan
Ireland · Mysoline
Italy · Mysoline
Luxembourg · Mysoline
Malta · Mysoline, Primidone Serb
Netherlands · Mysoline
Norway · Primidon Afortas
Poland · Mizodin
Portugal · Mysoline
Sweden · Primidon Afortas

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/aef96435-9ad5-467d-a654-2146276a3ac9
GET /v1/drugs/aef96435-9ad5-467d-a654-2146276a3ac9?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": "250",
  "substance": "PRIMIDONE",
  "productndc": "72789-177",
  "dosage_form": "TABLET",
  "dea_schedule": null,
  "strength_unit": "mg/1",
  "application_number": "ANDA040586",
  "marketing_category": "ANDA"
}

API reference MCP server Plans

See everything about primidone.

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.

Try it free Open in the console