Source: Health Canada shortage reports · Updated Jul 9, 2026
Some Cholestyramine Resin products are in shortage in Canada (1 of 4 reported products), while others remain available. Your pharmacy may be able to substitute an unaffected manufacturer. The latest estimate for affected products to return is Oct 3, 2027.
A bile acid binder used to lower high cholesterol.
Products affected
1 / 4
In shortage since
Sep 15, 2023
Est. full return
Oct 3, 2027
Reports on file
17
Talk to a pharmacist
Pharmacists can substitute an unaffected manufacturer's version, adjust strengths, and in most provinces adapt or renew a prescription on the spot.
Independent services, not affiliated with rxstat; referral fees may apply. Free options exist depending on your province. In an emergency call 911; free health advice at 811.
Shortage history
Shortage history (red bands = periods in shortage).
Reports by product
The DIN is printed on your prescription label.
Active shortage
OLESTYR
4G · POWDER FOR SUSPENSION · PHARMASCIENCE INC
DIN 00890960 · since Sep 15, 2023, est. end Oct 3, 2027 · Disruption of the manufacture of the drug.
Resolved
CHOLESTYRAMINE-ODAN
4G · POWDER FOR SUSPENSION · ODAN LABORATORIES LTD
DIN 02455609 · ended Apr 14, 2026 · Disruption of the manufacture of the drug.
Resolved
OLESTYR
4G · POWDER FOR SUSPENSION · PHARMASCIENCE INC
DIN 02210320 · ended Feb 21, 2025 · Disruption of the manufacture of the drug.
Resolved
CHOLESTYRAMINE-ODAN
4G · POWDER FOR SUSPENSION · ODAN LABORATORIES LTD
DIN 02455609 · ended Apr 14, 2025 · Demand increase for the drug.
Resolved
JAMP-CHOLESTYRAMINE
4G · POWDER FOR SUSPENSION · JAMP PHARMA CORPORATION
DIN 02478595 · ended Aug 21, 2024 · Disruption of the manufacture of the drug.
Resolved
OLESTYR
4G · POWDER FOR SUSPENSION · PHARMASCIENCE INC
DIN 02210320 · ended Nov 8, 2022 · Disruption of the manufacture of the drug.
Resolved
CHOLESTYRAMINE-ODAN
4G · POWDER FOR SUSPENSION · ODAN LABORATORIES LTD
DIN 02455609 · ended Apr 27, 2021 · Demand increase for the drug.
Resolved
CHOLESTYRAMINE-ODAN
4G · POWDER FOR SUSPENSION · ODAN LABORATORIES LTD
DIN 02455609 · ended Jan 5, 2021 · Disruption of the manufacture of the drug.
Resolved
CHOLESTYRAMINE-ODAN
4G · POWDER FOR SUSPENSION · ODAN LABORATORIES LTD
DIN 02455609 · ended Apr 9, 2020 · Delay in shipping of the drug.
Resolved
OLESTYR
4G · POWDER FOR SUSPENSION · PHARMASCIENCE INC
DIN 02210320 · ended Mar 9, 2020 · Disruption of the manufacture of the drug.
Resolved
CHOLESTYRAMINE-ODAN
4G · POWDER FOR SUSPENSION · ODAN LABORATORIES LTD
DIN 02455609 · ended Jan 8, 2020 · Delay in shipping of the drug.
Resolved
OLESTYR
4G · POWDER FOR SUSPENSION · PHARMASCIENCE INC
DIN 00890960 · ended Oct 16, 2019 · Demand increase for the drug.
Showing 12 of 17 reports. All reports are on file with Health Canada.
What's happening
Cholestyramine Resin is currently affected by an active shortage report filed with Health Canada by PHARMASCIENCE INC.
The reported cause is: disruption of the manufacture of the drug. Manufacturers must report shortages, but end-date estimates are their own projections and often move.
If your usual product is affected, a pharmacist is the fastest route to a solution: they can dispense an unaffected manufacturer's equivalent when one exists, and in most provinces can adapt doses or substitute a therapeutic alternative without a new appointment.
Cholestyramine Resin is classified under “LIPID MODIFYING AGENTS, PLAIN” (ATC C10AC).
Recent changes
No changes recorded yet.
Common questions
What is Cholestyramine Resin used for?
A bile acid binder used to lower high cholesterol.
When will Cholestyramine Resin be back in stock in Canada?
The latest manufacturer estimate is Oct 3, 2027. Estimates are self-reported and often slip; this page updates automatically when they change.
Why is Cholestyramine Resin in shortage?
See the reports above; manufacturers must state a reason (most commonly manufacturing disruption or a surge in demand) when filing with Health Canada.
What can my pharmacist do about it?
Often quite a lot: substitute an equivalent product from an unaffected manufacturer, adjust quantities, or in most provinces adapt or renew prescriptions on the spot. Call your pharmacy before visiting, and call 811 for free health advice.
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Drugs in the same therapeutic class, best-supplied first. These are not automatic substitutes: only your pharmacist or prescriber can judge whether a switch makes sense for you.
Data reflects reports manufacturers are legally required to file with Health Canada, republished with per-drug aggregation by rxstat. Estimated end dates are supplied by manufacturers and frequently change. This page describes drug supply only and is not medical advice; never stop or switch a medication without speaking to your pharmacist or prescriber.