Source: Health Canada shortage reports · Updated Jul 9, 2026
Some Prazosin products are in shortage in Canada (2 of 6 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 20, 2026.
An alpha blocker used to treat high blood pressure and PTSD-related nightmares.
Products affected
2 / 6
In shortage since
Jun 2, 2026
Est. full return
Aug 20, 2026
Reports on file
31
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-PRAZO
1MG · TABLET · APOTEX INC
DIN 00882801 · since Jun 2, 2026, est. end Jun 26, 2026 · Disruption of the manufacture of the drug.
Active shortage
TEVA-PRAZOSIN
1MG · TABLET · TEVA CANADA LIMITED
DIN 01934198 · since Jun 10, 2026, est. end Aug 20, 2026 · Disruption of the manufacture of the drug.
Resolved
APO-PRAZO
1MG · TABLET · APOTEX INC
DIN 00882801 · ended Mar 19, 2026 · Disruption of the manufacture of the drug.
Resolved
TEVA-PRAZOSIN
5MG · TABLET · TEVA CANADA LIMITED
DIN 01934228 · ended Nov 25, 2025 · Disruption of the manufacture of the drug.
Resolved
TEVA-PRAZOSIN
1MG · TABLET · TEVA CANADA LIMITED
DIN 01934198 · ended Nov 12, 2025 · Disruption of the manufacture of the drug.
Resolved
TEVA-PRAZOSIN
2MG · TABLET · TEVA CANADA LIMITED
DIN 01934201 · ended Nov 12, 2025 · Disruption of the manufacture of the drug.
Resolved
TEVA-PRAZOSIN
1MG · TABLET · TEVA CANADA LIMITED
DIN 01934198 · ended May 31, 2025 · Disruption of the manufacture of the drug.
Resolved
TEVA-PRAZOSIN
2MG · TABLET · TEVA CANADA LIMITED
DIN 01934201 · ended May 31, 2025 · Disruption of the manufacture of the drug.
Resolved
TEVA-PRAZOSIN
5MG · TABLET · TEVA CANADA LIMITED
DIN 01934228 · ended May 31, 2025 · Disruption of the manufacture of the drug.
Resolved
APO-PRAZO TAB 1MG
1MG · TABLET · APOTEX INC
DIN 00882801 · ended Jan 24, 2025 · Disruption of the manufacture of the drug.
Resolved
APO-PRAZO TAB 5MG
5MG · TABLET · APOTEX INC
DIN 00882836 · ended Jan 24, 2025 · Shortage of an active ingredient.
Resolved
APO-PRAZO TAB 2MG
2MG · TABLET · APOTEX INC
DIN 00882828 · ended Jan 24, 2025 · Disruption of the manufacture of the drug.
Showing 12 of 31 reports. All reports are on file with Health Canada.
What's happening
Prazosin is currently affected by 2 active shortage reports filed with Health Canada by APOTEX INC, TEVA CANADA LIMITED.
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.
Prazosin is classified under “ANTIADRENERGIC AGENTS, PERIPHERALLY ACTING” (ATC C02CA).
Recent changes
No changes recorded yet.
Common questions
What is Prazosin used for?
An alpha blocker used to treat high blood pressure and PTSD-related nightmares.
When will Prazosin be back in stock in Canada?
The latest manufacturer estimate is Aug 20, 2026. Estimates are self-reported and often slip; this page updates automatically when they change.
Why is Prazosin 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.