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Japan· JP-3999001Q1051

ラクツロース

A lactulose product containing ラクツロース, registered in Japan by 興和, on the national reimbursement list. The same ATC class is registered in 16 of our 19 countries.

On Japan’s NHI price listATC A06AD11

Checked against MHLW / PMDA (Japan) on

Informational only — not a medical device.

SOURCE REGISTER · JPMHLW / PMDA (Japan)normalisedラクツロースATCA06AD11REGISTER NO.JP-3999001Q1051PACKS LISTED0CHECKEDSeptember 25, 2026

Where it is registered

Lactulose is registered in 16 of 19 countries.

Countries holding a registration under ATC A06AD11 (lactulose), each read from that country’s own register.

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

Lactulose · ATC A06AD11

16 / 19 countries

  • Belgiumprice
  • Canada
  • Czechiaprice
  • Denmark
  • Finlandprice
  • Franceprice
  • Germany
  • Ireland
  • 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.

The record

At a glance

MHLW / PMDA (Japan)
Active substance
ラクツロース
Manufacturer
興和
Country
Japan (JP)
ATC code
A06AD11
ATC class
Lactulose
Defined daily dose
12.5 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

657 interactions on record for lactulose.

Graded by severity as the source publishes them — 263 moderate. 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

Lactulose · interactions on record

657 records

  • 263 moderate
  • 18 minor
  • 376 info

Most severe, free to view

  • CisaprideA03FA02moderate
  • OndansetronA04AA01moderate
  • GranisetronA04AA02moderate
  • DolasetronA04AA04moderate
  • 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.

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/caf897d7-1082-40c9-993f-4cb74f735495
GET /v1/drugs/caf897d7-1082-40c9-993f-4cb74f735495?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": "60%1mL",
  "marks": null,
  "source": "mhlw",
  "remarks": null,
  "yj_code": "3999001Q1051",
  "category": "内用薬",
  "price_yen": 7.1,
  "generic_name": "ラクツロース",
  "product_name_jp": null,
  "therapeutic_class": "3999",
  "transitional_expiry": null
}

See everything about lactulose.

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.