Japan· JP-4221001B1052
メルカプトプリン水和物
A medicinal product containing メルカプトプリン水和物, registered in Japan by 大原薬品工業, on the national reimbursement list.
Checked against MHLW / PMDA (Japan) on
Informational only — not a medical device.
The record
At a glance
MHLW / PMDA (Japan)- Active substance
- メルカプトプリン水和物
- Manufacturer
- 大原薬品工業
- Country
- Japan (JP)
- ATC code
- —
- 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.
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/fe5c9fa6-2040-404b-bbb9-f50e5877c899 GET /v1/drugs/fe5c9fa6-2040-404b-bbb9-f50e5877c899?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": null,
"source": "mhlw",
"remarks": null,
"yj_code": "4221001B1052",
"category": "内用薬",
"price_yen": 83.5,
"generic_name": "メルカプトプリン水和物",
"product_name_jp": null,
"therapeutic_class": "4221",
"transitional_expiry": null
}See everything about メルカプトプリン水和物.
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.