Japan· JP-1132002B1019

フェニトイン

A phenytoin product containing フェニトイン, registered in Japan, on the national reimbursement list. The same ATC class is registered in 15 of our 19 countries.

On Japan’s NHI price listATC N03AB02

Checked against MHLW / PMDA (Japan) on September 25, 2026

Informational only — not a medical device.

Compare price across countriesPer daily dose · free account Ask the assistant about フェニトインAnswers with sources · free account Check interactionsSeverity free · mechanism on Growth

Where it is registered

Phenytoin is registered in 15 of 19 countries.

Countries holding a registration under ATC N03AB02 (phenytoin), each read from that country’s own register.

This record: Japan, from MHLW / PMDA (Japan)
9 of them publish a price we can compare per daily dose

Search phenytoin products by name

Phenytoin · ATC N03AB02

15 / 19 countries

Belgiumprice
Canada
Czechiaprice
Finlandprice
Franceprice
Germany
Ireland
Italyprice
Japan
Netherlands
Norwayprice
Polandprice
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 phenytoin costs, country by country.

Normalised to the WHO defined daily dose (0.3 g), the median price runs from $0.21 in Italy to $0.63 in France — a ×3.0 gap.

4 markets with a comparable price for this class
Public list prices, converted to USD at the rate date shown
US figures are pharmacy acquisition cost (CMS NADAC), not retail

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

Phenytoin · price per daily dose (0.3 g)

USD · FX 28 Sept 2026

FR France$0.63
CH Switzerland$0.49
US United States$0.44 (acquisition cost)
IT Italy$0.21

Median listed price per WHO defined daily dose, in each market that publishes a price. US = pharmacy acquisition cost (CMS NADAC), not a retail price. Open the full comparison

The record

At a glance

MHLW / PMDA (Japan)

Active substance: フェニトイン
Manufacturer: —
Country: Japan (JP)
ATC code: N03AB02
ATC class: Phenytoin
Defined daily dose: 0.3 g, O
Reimbursed: Yes
Source register: MHLW / PMDA (Japan)
Last checked: September 25, 2026

Packs & prices · 0

No packs listed by the register for this record.

Regulatory notes

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

Interactions

635 interactions on record for phenytoin.

Graded by severity as the source publishes them — 128 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 phenytoin against other medicines How interaction checks work

Phenytoin · interactions on record

635 records

128 severe
332 moderate
13 minor
82 info

Most severe, free to view

CimetidineA02BA01severe
RolapitantA04AD14severe
NaloxegolA06AH03severe
NaldemedineA06AH05severe

80 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

Phenytoin in 16 other countries

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

All phenytoin products

Authorised across Europe · EMA

The same active substance is authorised in 22 EEA countries. Names it is sold under:

Austria · Epanutin, Epilan-D
Belgium · Diphantoïne
Cyprus · Epanutin, Fenitoína Rubió
Czechia · Epanutin Parenteral, Epilan D
Germany · Phenhydan, Phenytoin Awd
Estonia · Phenhydan
Spain · Epanutin, Fenitoína Altan Pharmaceuticals, S.A.
Finland · Hydantin
France · Di-Hydan, Dilantin
United Kingdom (Northern Ireland) · Epanutin, Epanutin Infatabs
Greece · Epanutin
Hungary · Diphedan, Epanutin
Ireland · Epanutin, Epanutin Infatabs
Italy · Aurantin, Dintoina
Luxembourg · Diphantoïne
Malta · Epanutin, Epanutin Ready Mixed Parenteral
Netherlands · Diphantoine-Z 100, Diphantoïne-Z 100
Poland · Epanutin Parenteral, Phenytoin Hikma
Portugal · Fenitan, Fenitoína Accord
Romania · Fenitoină Richter, Phenhydan
Sweden · Epanutin
Slovakia · Epilan D

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 MHLW / PMDA (Japan). 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/3572adf8-345b-4512-8a30-190d07b01e69
GET /v1/drugs/3572adf8-345b-4512-8a30-190d07b01e69?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.

{
  "spec": "１０％１ｇ",
  "marks": "局",
  "source": "mhlw",
  "remarks": null,
  "yj_code": "1132002B1019",
  "category": "内用薬",
  "price_yen": null,
  "generic_name": "フェニトイン",
  "product_name_jp": null,
  "therapeutic_class": "1132",
  "transitional_expiry": null
}

API reference MCP server Plans

See everything about phenytoin.

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