Atenolol Chlorthalidone (Tenoretic, Aa-Atenidone) shortage status
Discontinued
Source: Health Canada shortage reports · Updated Sep 23, 2026
Atenolol Chlorthalidone products have been discontinued in Canada. See the reports below for which products and when.
A combination of a beta blocker and a diuretic used to lower high blood pressure.
Products affected
0 / 5
Reports on file
12
Shortage history
Shortage history (red bands = periods in shortage).
Reports by product
The DIN is printed on your prescription label.
Resolved
AA-ATENIDONE
50MG
25MG · TABLET · AA PHARMA INC
DIN 02248763 · ended Jun 11, 2026 · Disruption of the manufacture of the drug.
Discontinued
TENORETIC 50/25MG TAB
25MG
50MG · TABLET · ASTRAZENECA CANADA INC
DIN 02049961
Discontinued
TENORETIC 100/25MG TAB
25MG
100MG · TABLET · ASTRAZENECA CANADA INC
DIN 02049988
Resolved
TENORETIC 100/25MG TAB
25MG
100MG · TABLET · ASTRAZENECA CANADA INC
DIN 02049988 · ended Apr 9, 2020 · Company decision to discontinue product confirmed June 2020. See Discontinuation Posting.
Resolved
TENORETIC 50/25MG TAB
25MG
50MG · TABLET · ASTRAZENECA CANADA INC
DIN 02049961 · ended Apr 11, 2020 · Company decision to discontinue product confirmed June 2020. See Discontinuation Posting.
Discontinued
TEVA-ATENOLOL/CHLORTHALIDONE
25MG
100MG · TABLET · TEVA CANADA LIMITED
DIN 02302926
Resolved
TEVA-ATENOLOL/CHLORTHALIDONE
25MG
100MG · TABLET · TEVA CANADA LIMITED
DIN 02302926 · ended Sep 30, 2019 · Disruption of the manufacture of the drug.
Resolved
APO-ATENIDONE
25MG
50MG · TABLET · APOTEX INC
DIN 02248763 · ended Feb 19, 2019 · Disruption of the manufacture of the drug.
Resolved
APO-ATENIDONE
25MG
100MG · TABLET · APOTEX INC
DIN 02248764 · ended Jul 23, 2018 · Disruption of the manufacture of the drug.
Resolved
APO-ATENIDONE
25MG
50MG · TABLET · APOTEX INC
DIN 02248763 · ended Jul 23, 2018 · Disruption of the manufacture of the drug.
Discontinued
APO-ATENIDONE
25MG
50MG · TABLET · APOTEX INC
DIN 02248763
Discontinued
APO-ATENIDONE
25MG
100MG · TABLET · APOTEX INC
DIN 02248764
What's happening
One or more Atenolol Chlorthalidone products have been permanently discontinued by their manufacturers. If your product is affected, ask your pharmacist about equivalent products still on the market.
Atenolol Chlorthalidone is classified under “BETA BLOCKING AGENTS AND OTHER DIURETICS” (ATC C07CB).
Recent changes
Sep 23, 2026
Shortage resolved
Common questions
What is Atenolol Chlorthalidone used for?
A combination of a beta blocker and a diuretic used to lower high blood pressure.
When will Atenolol Chlorthalidone 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 Chlorthalidone 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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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.