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Colistin shortage status

Partial shortage

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

Some Colistin products are in shortage in Canada (1 of 3 reported products), while others remain available. Your pharmacy may be able to substitute an unaffected manufacturer.
Products affected
1 / 3
In shortage since
Jan 2, 2026
Reports on file
6
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
COLY-MYCIN M
150MG · POWDER FOR SOLUTION · SEARCHLIGHT PHARMA INC
DIN 00476420 · since Jan 2, 2026, no end estimate · Disruption of the manufacture of the drug.
Discontinued
COLISTIMETHATE FOR INJECTION U.S.P.
150MG · POWDER FOR SOLUTION · STERIMAX INC
DIN 02244849
Resolved
COLISTIMETHATE FOR INJECTION, USP
150MG · POWDER FOR SOLUTION · FRESENIUS KABI CANADA LTD
DIN 02403544 · ended Jul 10, 2025 · Disruption of the manufacture of the drug.
Resolved
COLY-MYCIN M
150MG · POWDER FOR SOLUTION · SEARCHLIGHT PHARMA INC
DIN 00476420 · ended Dec 7, 2022 · Other (Please describe in comments)
Resolved
COLISTIMETHATE FOR INJECTION
150MG · POWDER FOR SOLUTION · FRESENIUS KABI CANADA LTD
DIN 02403544 · ended Feb 22, 2022 · Disruption of the manufacture of the drug.
Resolved
COLY-MYCIN M PARENTERAL
150MG · POWDER FOR SOLUTION · ERFA CANADA 2012 INC
DIN 00476420 · ended Mar 16, 2022 · Delay in shipping of the drug.

What's happening

Colistin is currently affected by an active shortage report filed with Health Canada by SEARCHLIGHT PHARMA 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.

Colistin is classified under “OTHER ANTIBACTERIALS” (ATC J01XB).

Recent changes

Common questions

When will Colistin 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 Colistin 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 antibacterials)

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.