rxstat › Shortages › Tamoxifen
Tamoxifen shortage status
Partial shortage
Source: Health Canada shortage reports · Updated Jul 9, 2026
Some Tamoxifen products are in shortage in Canada (2 of 5 reported products), while others remain available. Your pharmacy may be able to substitute an unaffected manufacturer.
In shortage since
Feb 7, 2024
Talk to your pharmacist. Pharmacists can often substitute another manufacturer's version, a different strength, or (in most provinces) adapt or renew a prescription on the spot. Your free provincial health line is 811.
Reports by product
Active shortageTEVA-TAMOXIFEN
20MG · TABLET · TEVA CANADA LIMITED
DIN 00851973 · since Feb 7, 2024, no end estimate · Other (Please describe in comments)
Active shortageTEVA-TAMOXIFEN
10MG · TABLET · TEVA CANADA LIMITED
DIN 00851965 · since Apr 3, 2024, no end estimate · Disruption of the manufacture of the drug.
ResolvedAPO-TAMOX TAB 10MG
10MG · TABLET · APOTEX INC
DIN 00812404 · ended Jul 24, 2025 · Disruption of the manufacture of the drug.
ResolvedAPO-TAMOX TAB 20MG
20MG · TABLET · APOTEX INC
DIN 00812390 · ended Jul 18, 2024 · Disruption of the manufacture of the drug.
ResolvedAPO-TAMOX TAB 10MG
10MG · TABLET · APOTEX INC
DIN 00812404 · ended Jul 18, 2024 · Disruption of the manufacture of the drug.
ResolvedAPO-TAMOX TAB 20MG
20MG · TABLET · APOTEX INC
DIN 00812390 · ended May 23, 2024 · Disruption of the manufacture of the drug.
ResolvedAPO-TAMOX TAB 10MG
10MG · TABLET · APOTEX INC
DIN 00812404 · ended Jun 1, 2023 · Disruption of the manufacture of the drug.
DiscontinuedNOLVADEX-D TAB 20MG
20MG · TABLET · ASTRAZENECA CANADA INC
DIN 02048485
ResolvedTEVA-TAMOXIFEN
10MG · TABLET · TEVA CANADA LIMITED
DIN 00851965 · ended Dec 1, 2022 · Disruption of the manufacture of the drug.
ResolvedTEVA-TAMOXIFEN
10MG · TABLET · TEVA CANADA LIMITED
DIN 00851965 · ended Nov 11, 2022 · Disruption of the manufacture of the drug.
ResolvedNOLVADEX-D TAB 20MG
20MG · TABLET · ASTRAZENECA CANADA INC
DIN 02048485 · ended May 21, 2020 · Demand increase for the drug.
ResolvedTEVA-TAMOXIFEN
20MG · TABLET · TEVA CANADA LIMITED
DIN 00851973 · ended May 8, 2020 · Demand increase for the drug.
Showing 12 of 24 reports. All reports are on file with Health Canada.
What's happening
Tamoxifen is currently affected by 2 active shortage reports filed with Health Canada by TEVA CANADA LIMITED.
The reported causes are: other (please describe in comments); 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.
Tamoxifen is classified under “HORMONE ANTAGONISTS AND RELATED AGENTS” (ATC L02BA).
Recent changes
Common questions
When will Tamoxifen be back in stock in Canada?
Manufacturers have not provided a reliable end date. This page updates automatically as soon as an estimate is filed.
Why is Tamoxifen 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.
Guides: what to do when your medication is in shortage · how to read shortage reports
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.