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Shortage history
Shortage history (red bands = periods in shortage).
Reports by product
The DIN is printed on your prescription label.
Active shortage
TAPAZOLE
10MG · TABLET · PALADIN PHARMA INC.
DIN 02296039 · since Oct 30, 2024, no end estimate · Disruption of the manufacture of the drug.
Active shortage
TAPAZOLE
5MG · TABLET · PALADIN PHARMA INC.
DIN 00015741 · since Jun 21, 2024, no end estimate · Disruption of the manufacture of the drug.
Active shortage
APO-METHIMAZOLE
5MG · TABLET · APOTEX INC
DIN 02258935 · since Mar 10, 2017, no end estimate · Disruption of the manufacture of the drug.
Resolved
JAMP METHIMAZOLE
5MG · TABLET · JAMP PHARMA CORPORATION
DIN 02490625 · ended Sep 18, 2025 · Disruption of the manufacture of the drug.
Resolved
MAR-METHIMAZOLE
5MG · TABLET · MARCAN PHARMACEUTICALS INC
DIN 02480107 · ended Mar 3, 2023 · Shortage of an active ingredient.
Resolved
JAMP METHIMAZOLE
5MG · TABLET · JAMP PHARMA CORPORATION
DIN 02490625 · ended Jan 27, 2023 · Disruption of the manufacture of the drug.
Avoided
MAR-METHIMAZOLE
5MG · TABLET · MARCAN PHARMACEUTICALS INC
DIN 02480107 · ended Jan 5, 2022 · Shortage of an active ingredient.
Avoided
MAR-METHIMAZOLE
5MG · TABLET · MARCAN PHARMACEUTICALS INC
DIN 02480107 · ended Mar 13, 2019 · Delay in shipping of the drug.
Resolved
MAR-METHIMAZOLE
5MG · TABLET · MARCAN PHARMACEUTICALS INC
DIN 02480107 · ended Jan 6, 2019 · Delay in shipping of the drug.
What's happening
Methimazole is currently affected by 3 active shortage reports filed with Health Canada by PALADIN PHARMA INC., 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.
Methimazole is classified under “ANTITHYROID PREPARATIONS” (ATC H03BB).
Recent changes
No changes recorded yet.
Common questions
What is Methimazole used for?
An antithyroid medication used to treat an overactive thyroid (hyperthyroidism).
When will Methimazole 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 Methimazole 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.