rxstat › Shortages › Dantrolene
Dantrolene shortage status
Widespread shortage
Source: Health Canada shortage reports · Updated Jul 9, 2026
Dantrolene is in a widespread shortage in Canada. 2 of 4 reported products are affected. The latest manufacturer estimate for full recovery is Sep 30, 2026.
In shortage since
Apr 20, 2026
Est. full return
Sep 30, 2026
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 shortageDANTROLENE SODIUM FOR INJECTION, USP
20MG · POWDER FOR SOLUTION · HIKMA CANADA LIMITED
DIN 02529998 · since May 4, 2026, est. end Jul 24, 2026 · Demand increase for the drug.
Active shortageDANTRIUM INTRAVENOUS
20MG · POWDER FOR SOLUTION · KNIGHT THERAPEUTICS INC.
DIN 01997572 · since Apr 20, 2026, est. end Sep 30, 2026 · Disruption of the manufacture of the drug.
ResolvedDANTROLENE SODIUM FOR INJECTION, USP
20MG · POWDER FOR SOLUTION · HIKMA CANADA LIMITED
DIN 02529998 · ended Mar 26, 2026 · Disruption of the manufacture of the drug.
ResolvedDANTRIUM INTRAVENOUS
20MG · POWDER FOR SOLUTION · ENDO OPERATIONS LTD.
DIN 01997572 · ended Nov 7, 2025 · Demand increase for the drug.
ResolvedDANTROLENE SODIUM FOR INJECTION, USP
20MG · POWDER FOR SOLUTION · HIKMA CANADA LIMITED
DIN 02529998 · ended Sep 5, 2025 · Disruption of the manufacture of the drug.
ResolvedDANTROLENE SODIUM FOR INJECTION, USP
20MG · POWDER FOR SOLUTION · HIKMA CANADA LIMITED
DIN 02529998 · ended Aug 29, 2024 · Delay in shipping of the drug.
ResolvedDANTRIUM CAPSULES
25MG · CAPSULE · ENDO PAR INNOVATION COMPANY, LLC
DIN 01997602 · ended Feb 1, 2024 · Delay in shipping of the drug.
ResolvedDANTRIUM INTRAVENOUS
20MG · POWDER FOR SOLUTION · ENDO PAR INNOVATION COMPANY, LLC
DIN 01997572 · ended Jul 24, 2023 · Delay in shipping of the drug.
ResolvedDANTRIUM INTRAVENOUS
20MG · POWDER FOR SOLUTION · ENDO PAR INNOVATION COMPANY, LLC
DIN 01997572 · ended Dec 21, 2022 · Disruption of the manufacture of the drug.
ResolvedDANTRIUM INTRAVENOUS
20MG · POWDER FOR SOLUTION · PAR PHARMACEUTICAL COMPANIES
DIN 01997572 · ended Jul 30, 2018 · Demand increase for the drug.
DiscontinuedDANTRIUM CAPSULES
100MG · CAPSULE · PAR PHARMACEUTICAL COMPANIES
DIN 01997653
ResolvedDANTRIUM CAPSULES
25MG · CAPSULE · PAR PHARMACEUTICAL COMPANIES
DIN 01997602 · ended Apr 20, 2017 · Other (Please describe in comments)
What's happening
Dantrolene is currently affected by 2 active shortage reports filed with Health Canada by HIKMA CANADA LIMITED, KNIGHT THERAPEUTICS INC..
The reported causes are: demand increase for the drug; 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.
Dantrolene is classified under “MUSCLE RELAXANTS, DIRECTLY ACTING AGENTS” (ATC M03CA).
Recent changes
Common questions
When will Dantrolene be back in stock in Canada?
The latest manufacturer estimate is Sep 30, 2026. Estimates are self-reported and often slip; this page updates automatically when they change.
Why is Dantrolene 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.
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.