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Histamine shortage status

Widespread shortage

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

Histamine is in a widespread shortage in Canada. 2 of 2 reported products are affected. Manufacturers have not committed to a recovery date.
Products affected
2 / 2
In shortage since
Nov 3, 2022
Reports on file
2
Talk to your pharmacist. Pharmacists can often substitute another manufacturer's version, a different strength, or (in most provinces) adapt or renew a prescription on the spot. Your free provincial health line is 811.

Reports by product

Active shortage
HISTATROL
0.275MG · SOLUTION · ALK-ABELLO INC
DIN 00609706 · since Nov 3, 2022, no end estimate · Shortage of an active ingredient.
Active shortage
HISTATROL
2.75MG · SOLUTION · ALK-ABELLO INC
DIN 00609692 · since Nov 3, 2022, no end estimate · Shortage of an active ingredient.

What's happening

Histamine is currently affected by 2 active shortage reports filed with Health Canada by ALK-ABELLO INC.

The reported cause is: shortage of an active ingredient. 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.

Histamine is classified under “OTHER DIAGNOSTIC AGENTS” (ATC V04CL).

Recent changes

Common questions

When will Histamine 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 Histamine 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.

Related drugs (other diagnostic agents)

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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.