Source: Health Canada shortage reports · Updated Jul 15, 2026
Some Warfarin products are in shortage in Canada (3 of 23 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 Aug 7, 2026.
A blood thinner (anticoagulant) used to prevent and treat blood clots.
Products affected
3 / 23
In shortage since
May 28, 2024
Est. full return
Aug 7, 2026
Reports on file
82
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
TARO-WARFARIN
2.5MG · TABLET · TARO PHARMACEUTICALS INC
DIN 02242682 · since Apr 1, 2026, est. end Aug 7, 2026 · Disruption of the manufacture of the drug.
Active shortage
APO-WARFARIN
1MG · TABLET · APOTEX INC
DIN 02242924 · since Mar 31, 2026, est. end Jul 31, 2026 · Disruption of the manufacture of the drug.
Active shortage
APO-WARFARIN
2.5MG · TABLET · APOTEX INC
DIN 02242926 · since May 28, 2024, no end estimate · Disruption of the manufacture of the drug.
Resolved
TARO-WARFARIN
1MG · TABLET · TARO PHARMACEUTICALS INC
DIN 02242680 · ended Jun 30, 2026 · Disruption of the manufacture of the drug.
Resolved
TARO-WARFARIN
2MG · TABLET · TARO PHARMACEUTICALS INC
DIN 02242681 · ended May 21, 2026 · Disruption of the manufacture of the drug.
Resolved
TARO-WARFARIN
10MG · TABLET · TARO PHARMACEUTICALS INC
DIN 02242687 · ended Mar 6, 2026 · Disruption of the manufacture of the drug.
Resolved
TARO-WARFARIN
4MG · TABLET · TARO PHARMACEUTICALS INC
DIN 02242684 · ended Dec 10, 2025 · Disruption of the manufacture of the drug.
Resolved
TARO-WARFARIN
2.5MG · TABLET · TARO PHARMACEUTICALS INC
DIN 02242682 · ended Oct 31, 2025 · Disruption of the manufacture of the drug.
Resolved
APO-WARFARIN
2MG · TABLET · APOTEX INC
DIN 02242925 · ended Sep 25, 2025 · Disruption of the manufacture of the drug.
Resolved
TARO-WARFARIN
4MG · TABLET · TARO PHARMACEUTICALS INC
DIN 02242684 · ended Jun 19, 2025 · Disruption of the manufacture of the drug.
Resolved
TARO-WARFARIN
4MG · TABLET · TARO PHARMACEUTICALS INC
DIN 02242684 · ended Jun 30, 2025 · Disruption of the manufacture of the drug.
Resolved
TARO-WARFARIN
1MG · TABLET · TARO PHARMACEUTICALS INC
DIN 02242680 · ended Oct 30, 2024 · Disruption of the manufacture of the drug.
Showing 12 of 60 reports. All reports are on file with Health Canada.
What's happening
Warfarin is currently affected by 3 active shortage reports filed with Health Canada by TARO PHARMACEUTICALS INC, APOTEX 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.
Warfarin is classified under “ANTITHROMBOTIC AGENTS” (ATC B01AA).
Recent changes
Jul 15, 2026
Shortage resolved
Jul 15, 2026
Estimated end date pushed back : Jul 24, 2026 → Aug 7, 2026
Jul 9, 2026
Estimated end date moved earlier : Aug 7, 2026 → Jul 31, 2026
Common questions
What is Warfarin used for?
A blood thinner (anticoagulant) used to prevent and treat blood clots.
When will Warfarin be back in stock in Canada?
The latest manufacturer estimate is Aug 7, 2026. Estimates are self-reported and often slip; this page updates automatically when they change.
Why is Warfarin 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.