United Kingdom· GB-APID-39858011000001100
Hiprex 1g tablets
A methenamine product containing methenamine, registered in United Kingdom by CST Pharma Ltd. The same ATC class is registered in 9 of our 19 countries.
Checked against NHS dm+d (United Kingdom) on
Informational only — not a medical device.
Where it is registered
Methenamine is registered in 9 of 19 countries.
Countries holding a registration under ATC J01XX05 (methenamine), each read from that country’s own register.
- This record: United Kingdom, from NHS dm+d (United Kingdom)
- 4 of them publish a price we can compare per daily dose
Methenamine · ATC J01XX05
9 / 19 countries
- Belgiumprice
- Denmark
- Finlandprice
- Germany
- Icelandprice
- Ireland
- Netherlands
- Norwayprice
- United Kingdom
The record
At a glance
NHS dm+d (United Kingdom)- Active substance
- Methenamine
- Manufacturer
- CST Pharma Ltd
- Country
- United Kingdom (GB)
- ATC code
- J01XX05
- ATC class
- Methenamine
- Defined daily dose
- 2 g, O
- Reimbursed
- Not published by this register
- Source register
- NHS dm+d (United Kingdom)
- Last checked
- September 13, 2026
Packs & prices · 2
- gtin5055946808734
- gtin5055946809694
Regulatory notes
No shortage, Orange Book or US label notes for this record.
Interactions
22 interactions on record for methenamine.
Graded by severity as the source publishes them — 4 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
Methenamine · interactions on record
22 records
- 4 severe
- 18 moderate
Most severe, free to view
- SulfasalazineA07EC01severe
- SulfamethizoleB05CA04severe
- SulfamethizoleJ01EB02severe
- SulfasalazinM01CX02severe
- 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
Methenamine in 4 other countries
What each register calls a product with the same active substance — salts and hydrates count as the same.
- GermanyAntihydralRobugen Gmbh Pharmazeutische Fabrik
- SwitzerlandAntihydral, Salbesteinberg pharma ag
- NetherlandsXcyst 500 mg, maagsapresistente tablettenACE Pharmaceuticals B.V.
- PolandPedipurPoznańskie Zakłady Zielarskie "Herbapol" S.A.
Authorised across Europe · EMA
The same active substance is authorised in 3 EEA countries. Names it is sold under:
- Germany · Antihydral, Methenamin Smartpractice Europe
- Luxembourg · Antihydral
- Poland · Pedipur
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 NHS dm+d (United Kingdom). 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/58b587c2-7778-4283-837e-0f2b3cfe8a7c GET /v1/drugs/58b587c2-7778-4283-837e-0f2b3cfe8a7c?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.
{
"apid": "39858011000001100",
"desc": "Hiprex 1g tablets (CST Pharma Ltd)",
"form": "Oral tablet",
"vpid": "41951711000001108",
"source": "dmd",
"vtm_id": "776725009",
"strength": "1 gram",
"substance": "Methenamine",
"ingredient": "Methenamine hippurate",
"supplier_code": "24059811000001102"
}See everything about methenamine.
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.