Source: Health Canada shortage reports · Updated Jul 23, 2026
Also sold as: Cardura-4, Cardura-2, Cardura-1
Some Doxazosin products are in shortage in Canada (1 of 15 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 14, 2026.
An alpha blocker used to treat high blood pressure and symptoms of an enlarged prostate.
Products affected
1 / 15
In shortage since
Jul 21, 2026
Est. full return
Aug 14, 2026
Reports on file
33
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
APO-DOXAZOSIN
4MG · TABLET · APOTEX INC
DIN 02240590 · since Jul 21, 2026, est. end Aug 14, 2026 · Disruption of the manufacture of the drug.
Resolved
TEVA-DOXAZOSIN
2MG · TABLET · TEVA CANADA LIMITED
DIN 02242729 · ended Jan 7, 2026 · Disruption of the manufacture of the drug.
Resolved
APO-DOXAZOSIN
4MG · TABLET · APOTEX INC
DIN 02240590 · ended Dec 18, 2025 · Disruption of the manufacture of the drug.
Resolved
TEVA-DOXAZOSIN
1MG · TABLET · TEVA CANADA LIMITED
DIN 02242728 · ended Jul 15, 2025 · Disruption of the manufacture of the drug.
Resolved
TEVA-DOXAZOSIN
2MG · TABLET · TEVA CANADA LIMITED
DIN 02242729 · ended Jul 15, 2025 · Disruption of the manufacture of the drug.
Resolved
APO-DOXAZOSIN
1MG · TABLET · APOTEX INC
DIN 02240588 · ended Jul 17, 2025 · Disruption of the manufacture of the drug.
Resolved
APO-DOXAZOSIN
2MG · TABLET · APOTEX INC
DIN 02240589 · ended Jun 26, 2025 · Disruption of the manufacture of the drug.
Resolved
TEVA-DOXAZOSIN
1MG · TABLET · TEVA CANADA LIMITED
DIN 02242728 · ended Oct 31, 2024 · Disruption of the manufacture of the drug.
Resolved
TEVA-DOXAZOSIN
4MG · TABLET · TEVA CANADA LIMITED
DIN 02242730 · ended Apr 17, 2024 · Disruption of the manufacture of the drug.
Resolved
APO-DOXAZOSIN
4MG · TABLET · APOTEX INC
DIN 02240590 · ended Mar 21, 2024 · Disruption of the manufacture of the drug.
Resolved
TEVA-DOXAZOSIN
4MG · TABLET · TEVA CANADA LIMITED
DIN 02242730 · ended Sep 10, 2023 · Disruption of the manufacture of the drug.
Resolved
TEVA-DOXAZOSIN
1MG · TABLET · TEVA CANADA LIMITED
DIN 02242728 · ended Apr 27, 2023 · Disruption of the manufacture of the drug.
Showing 12 of 33 reports. All reports are on file with Health Canada.
What's happening
Doxazosin is currently affected by an active shortage report filed with Health Canada by 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.
Doxazosin is classified under “ANTIADRENERGIC AGENTS, PERIPHERALLY ACTING” (ATC C02CA).
Recent changes
Jul 23, 2026
New report filed
Common questions
What is Doxazosin used for?
An alpha blocker used to treat high blood pressure and symptoms of an enlarged prostate.
When will Doxazosin be back in stock in Canada?
The latest manufacturer estimate is Aug 14, 2026. Estimates are self-reported and often slip; this page updates automatically when they change.
Why is Doxazosin 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.