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Canada· CA-DIN-02210320

OLESTYR

A colestyramine product containing cholestyramine resin, registered in Canada by PHARMASCIENCE INC. The same ATC class is registered in 13 of our 19 countries.

ATC C10AC01

Checked against Health Canada Drug Product Database (Canada) on

Informational only — not a medical device.

SOURCE REGISTER · CAHealth Canada Drug Product Database (Ca…normalisedOLESTYRATCC10AC01REGISTER NO.CA-DIN-02210320PACKS LISTED0CHECKEDOctober 1, 2026
Compare price across countriesPer daily dose · free accountAsk the assistant about cholestyramine resinAnswers with sources · free accountCheck interactionsSeverity free · mechanism on Growth

Where it is registered

Colestyramine is registered in 13 of 19 countries.

Countries holding a registration under ATC C10AC01 (colestyramine), each read from that country’s own register.

  • This record: Canada, from Health Canada Drug Product Database (Canada)
  • 7 of them publish a price we can compare per daily dose
Search colestyramine products by name

Colestyramine · ATC C10AC01

13 / 19 countries

  • Belgiumprice
  • Canada
  • Czechiaprice
  • Denmark
  • Finlandprice
  • Germany
  • Ireland
  • Italyprice
  • Netherlands
  • Norwayprice
  • 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

Health Canada Drug Product Database (Canada)
Active substance
CHOLESTYRAMINE RESIN
Manufacturer
PHARMASCIENCE INC
Country
Canada (CA)
ATC code
C10AC01
ATC class
Colestyramine
Defined daily dose
14 g, O
Reimbursed
Not published by this register
Source register
Health Canada Drug Product Database (Canada)
Last checked
October 1, 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

88 interactions on record for colestyramine.

Graded by severity as the source publishes them — 3 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 colestyramine against other medicinesHow interaction checks work

Colestyramine · interactions on record

88 records

  • 3 severe
  • 73 moderate
  • 7 minor

Most severe, free to view

  • Mycophenolic acidL04AA06severe
  • TeriflunomidL04AA31severe
  • TeriflunomideL04AK02severe
  • Chenodeoxycholic acidA05AA01moderate

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

Sign in to check
  • 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

Colestyramine in 14 other countries

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

All colestyramine products

Authorised across Europe · EMA

The same active substance is authorised in 17 EEA countries. Names it is sold under:

  • Austria · Quantalan Zuckerfrei
  • Belgium · Questran
  • Cyprus · Resincolestiramina
  • Germany · Colestyramin 1 A Pharma, Colestyramin Ratiopharm
  • Denmark · Colestyramin Orifarm
  • Spain · Efensol, Resincolestiramina
  • Finland · Questran
  • France · Questran
  • United Kingdom (Northern Ireland) · Colestyramine Light Laboratorios Rubió, Colestyramine Neon Healthcare
  • Hungary · Cholestyramine
  • Ireland · Questran
  • Italy · Questran
  • Luxembourg · Questran
  • Netherlands · Colestyramine Suikervrij Focus, Questran
  • Norway · Questran, Questran Loc
  • Portugal · Quantalan
  • Sweden · Kolestyramin Alternova, Questran

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 Health Canada Drug Product Database (Canada). 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/805d3ef3-7a44-4244-bfd5-3acc3e133c64
GET /v1/drugs/805d3ef3-7a44-4244-bfd5-3acc3e133c64?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.

{
  "din": "02210320",
  "form": "POWDER FOR SUSPENSION",
  "class": "Human",
  "routes": [
    "ORAL"
  ],
  "source": "health_canada_dpd",
  "status": "MARKETED",
  "atc_raw": "C10AC01",
  "schedule": [
    "Prescription"
  ],
  "drug_code": "19757",
  "strengths": [
    "4 G"
  ],
  "ahfs_class": null,
  "substances": [
    "CHOLESTYRAMINE RESIN"
  ],
  "product_categorization": null
}
API referenceMCP serverPlans

See everything about colestyramine.

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 freeOpen in the console