rxstatShortages › Isosorbide-5-mononitrate

Isosorbide-5-mononitrate (Ismn, Imdur - Extended Release) shortage status

No current shortage

Source: Health Canada shortage reports · Updated Sep 4, 2026

Also sold as: Ismn, Imdur - Extended Release, Imdur

Isosorbide-5-mononitrate has no current shortage reported in Canada. It has been in shortage before; the history is below.

A nitrate used to prevent angina (chest pain).

Products affected
0 / 5
Reports on file
28

Shortage history

2023 2024 2025 2026

Shortage history (red bands = periods in shortage).

Reports by product

The DIN is printed on your prescription label.

Discontinued
PMS-ISMN
60MG · TABLET (EXTENDED-RELEASE) · PHARMASCIENCE INC
DIN 02301288
Resolved
PMS-ISMN
60MG · TABLET (EXTENDED-RELEASE) · PHARMASCIENCE INC
DIN 02301288 · ended Sep 3, 2026 · Disruption of the manufacture of the drug.
Resolved
PMS-ISMN
60MG · TABLET (EXTENDED-RELEASE) · PHARMASCIENCE INC
DIN 02301288 · ended Sep 3, 2026 · Disruption of the manufacture of the drug.
Resolved
APO-ISMN
60MG · TABLET (EXTENDED-RELEASE) · APOTEX INC
DIN 02272830 · ended May 29, 2025 · Disruption of the manufacture of the drug.
Resolved
PRO-ISMN - 60
60MG · TABLET (EXTENDED-RELEASE) · PRO DOC LIMITEE
DIN 02311321 · ended Jan 21, 2025 · Disruption of the manufacture of the drug.
Discontinued
IMDUR
60MG · TABLET (EXTENDED-RELEASE) · JUNO PHARMACEUTICALS CORP.
DIN 02126559
Discontinued
IMDUR
60MG · TABLET (EXTENDED-RELEASE) · JUNO PHARMACEUTICALS CORP.
DIN 02126559
Resolved
PMS-ISMN
60MG · TABLET (EXTENDED-RELEASE) · PHARMASCIENCE INC
DIN 02301288 · ended Aug 10, 2023 · Disruption of the manufacture of the drug.
Resolved
IMDUR - EXTENDED RELEASE TABLETS 60 MG
60MG · TABLET (EXTENDED-RELEASE) · JUNO PHARMACEUTICALS CORP.
DIN 02126559 · ended Dec 21, 2022 · Disruption of the manufacture of the drug.
Resolved
IMDUR
60MG · TABLET (EXTENDED-RELEASE) · JUNO PHARMACEUTICALS CORP.
DIN 02126559 · ended Dec 21, 2022 · Disruption of the manufacture of the drug.
Resolved
APO-ISMN
60MG · TABLET (EXTENDED-RELEASE) · APOTEX INC
DIN 02272830 · ended Mar 24, 2020 · Disruption of the manufacture of the drug.
Resolved
PMS-ISMN
60MG · TABLET (EXTENDED-RELEASE) · PHARMASCIENCE INC
DIN 02301288 · ended Sep 9, 2019 · Disruption of the manufacture of the drug.

Showing 12 of 28 reports. All reports are on file with Health Canada.

What's happening

There are no active shortage reports for Isosorbide-5-mononitrate. Health Canada has 28 historical reports on file for this drug, so supply has been disrupted before; the change log below shows the history.

Isosorbide-5-mononitrate is classified under “VASODILATORS USED IN CARDIAC DISEASES” (ATC C01DA).

Recent changes

Common questions

What is Isosorbide-5-mononitrate used for?

A nitrate used to prevent angina (chest pain).

When will Isosorbide-5-mononitrate be back in stock in Canada?

Isosorbide-5-mononitrate has no active shortage; supply is normal per Health Canada reports.

Why is Isosorbide-5-mononitrate in shortage?

It isn't currently. Past reports and their reasons are listed above.

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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Related drugs (vasodilators used in cardiac diseases)

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.