rxstatShortages › Atenolol

Atenolol (Tenormin) shortage status

Partial shortage

Source: Health Canada shortage reports · Updated Jul 9, 2026

Some Atenolol products are in shortage in Canada (7 of 34 reported products), while others remain available. Your pharmacy may be able to substitute an unaffected manufacturer.

A beta blocker used to lower blood pressure and manage heart conditions.

Products affected
7 / 34
In shortage since
Jan 1, 2015
Reports on file
116
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Pharmacists can substitute an unaffected manufacturer's version, adjust strengths, and in most provinces adapt or renew a prescription on the spot.
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Shortage history

2023 2024 2025 2026

Shortage history (red bands = periods in shortage).

Reports by product

The DIN is printed on your prescription label.

Active shortage
TEVA-ATENOLOL
100MG · TABLET · TEVA CANADA LIMITED
DIN 02171805 · since Apr 22, 2026, no end estimate · Disruption of the manufacture of the drug.
Active shortage
APO-ATENOL TAB 100MG
100MG · TABLET · APOTEX INC
DIN 00773697 · since Nov 18, 2025, no end estimate · Disruption of the manufacture of the drug.
Active shortage
APO-ATENOL TAB 50MG
50MG · TABLET · APOTEX INC
DIN 00773689 · since Oct 14, 2025, no end estimate · Disruption of the manufacture of the drug.
Active shortage
APO-ATENOL TAB 50MG
50MG · TABLET · APOTEX INC
DIN 00773689 · since Sep 2, 2025, no end estimate · Disruption of the manufacture of the drug.
Active shortage
APO-ATENOL TAB 100MG
100MG · TABLET · APOTEX INC
DIN 00773697 · since Aug 28, 2025, no end estimate · Disruption of the manufacture of the drug.
Active shortage
TEVA-ATENOLOL
25MG · TABLET · TEVA CANADA LIMITED
DIN 02266660 · since Jan 22, 2020, no end estimate · Disruption of the manufacture of the drug.
Active shortage
BIO-ATENOLOL
BIOMED PHARMA
DIN 02392186 · since Jan 1, 2015, no end estimate · FAIBLE VOLUME
Active shortage
BIO-ATENOLOL
BIOMED PHARMA
DIN 02392178 · since Jan 1, 2015, no end estimate · FAIBLE VOLUME
Active shortage
BIO-ATENOLOL
BIOMED PHARMA
DIN 02392194 · since Jan 1, 2015, no end estimate · LOW VOLUME
Anticipated
ATENOLOL
50MG · TABLET · SANIS HEALTH INC
DIN 02466465 · Disruption of the manufacture of the drug.
Anticipated
ATENOLOL
50MG · TABLET · SANIS HEALTH INC
DIN 02466465 · Disruption of the manufacture of the drug.
Anticipated
ATENOLOL
100MG · TABLET · SANIS HEALTH INC
DIN 02466473 · Disruption of the manufacture of the drug.

Showing 12 of 60 reports. All reports are on file with Health Canada.

What's happening

Atenolol is currently affected by 7 active shortage reports filed with Health Canada by TEVA CANADA LIMITED, APOTEX INC, BIOMED PHARMA.

The reported causes are: disruption of the manufacture of the drug; faible volume; low volume. 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.

Atenolol is classified under “BETA BLOCKING AGENTS” (ATC C07AB).

Recent changes

Common questions

What is Atenolol used for?

A beta blocker used to lower blood pressure and manage heart conditions.

When will Atenolol 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 Atenolol 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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Possible alternatives in the same class (beta blocking agents)

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.

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.