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Isoniazid shortage status

No current shortage

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

Isoniazid has no current shortage reported in Canada. It has been in shortage before; the history is below.
Products affected
0 / 3
Reports on file
3

Reports by product

Resolved
PDP-ISONIAZID
100MG · TABLET · PENDOPHARM DIVISION OF PHARMASCIENCE INC
DIN 00577790 · ended Mar 3, 2026 · Shortage of an active ingredient.
Resolved
PDP-ISONIAZID
50MG · SOLUTION · PENDOPHARM DIVISION OF PHARMASCIENCE INC
DIN 00577812 · ended Mar 20, 2025 · Disruption of the manufacture of the drug.
Resolved
PDP-ISONIAZID
300MG · TABLET · PENDOPHARM DIVISION OF DE PHARMASCIENCE INC
DIN 00577804 · ended Jan 16, 2018 · Demand increase for the drug.

What's happening

There are no active shortage reports for Isoniazid. Health Canada has 3 historical reports on file for this drug, so supply has been disrupted before; the change log below shows the history.

Isoniazid is classified under “DRUGS FOR TREATMENT OF TUBERCULOSIS” (ATC J04AC).

Recent changes

Common questions

When will Isoniazid be back in stock in Canada?

Isoniazid has no active shortage; supply is normal per Health Canada reports.

Why is Isoniazid 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.

Related drugs (drugs for treatment of tuberculosis)

DiscontinuedPyrazinamide Rifampin Isoniazid0 of 1 reported products affectedNo current shortageRifabutin

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.