Source: Health Canada shortage reports · Updated Jul 9, 2026
Some Magnesium products are in shortage in Canada (1 of 2 reported products), while others remain available. Your pharmacy may be able to substitute an unaffected manufacturer.
Products affected
1 / 2
In shortage since
Jun 12, 2026
Reports on file
14
Talk to a pharmacist
Pharmacists can substitute an unaffected manufacturer's version, adjust strengths, and in most provinces adapt or renew a prescription on the spot.
Independent services, not affiliated with rxstat; referral fees may apply. Free options exist depending on your province. In an emergency call 911; free health advice at 811.
Shortage history
Shortage history (red bands = periods in shortage).
Reports by product
The DIN is printed on your prescription label.
Active shortage
MAGNESIUM SULFATE INJECTION USP
200MG · LIQUID · SANDOZ CANADA INCORPORATED
DIN 00392618 · since Jun 12, 2026, no end estimate · Allocation at 100%
Resolved
MAGNESIUM SULFATE INJECTION, USP
500MG · SOLUTION · FRESENIUS KABI CANADA LTD
DIN 02139499 · ended Apr 1, 2026 · Delay in shipping of the drug.
Resolved
MAGNESIUM SULFATE INJECTION, USP
500MG · SOLUTION · FRESENIUS KABI CANADA LTD
DIN 02139499 · ended Dec 29, 2025 · Delay in shipping of the drug.
Resolved
MAGNESIUM SULFATE INJECTION, USP
500MG · SOLUTION · FRESENIUS KABI CANADA LTD
DIN 02139499 · ended Oct 25, 2025 · Disruption of the manufacture of the drug.
Resolved
MAGNESIUM SULFATE INJECTION, USP
500MG · SOLUTION · FRESENIUS KABI CANADA LTD
DIN 02139499 · ended Aug 9, 2024
Resolved
MAGNESIUM SULFATE INJECTION, USP
500MG · SOLUTION · FRESENIUS KABI CANADA LTD
DIN 02139499 · ended May 1, 2024 · Disruption of the manufacture of the drug.
Resolved
MAGNESIUM SULFATE INJ 20% USP
200MG · LIQUID · SANDOZ CANADA INCORPORATED
DIN 00392618 · ended Jul 24, 2023 · Disruption of the manufacture of the drug.
Resolved
MAGNESIUM SULFATE INJ 20% USP
200MG · LIQUID · SANDOZ CANADA INCORPORATED
DIN 00392618 · ended Feb 2, 2023 · Disruption of the manufacture of the drug.
Resolved
MAGNESIUM SULFATE INJECTION
500MG · SOLUTION · FRESENIUS KABI CANADA LTD
DIN 02139499 · ended Dec 5, 2022 · Disruption of the manufacture of the drug.
Resolved
MAGNESIUM SULFATE INJECTION
500MG · SOLUTION · FRESENIUS KABI CANADA LTD
DIN 02139499 · ended Dec 15, 2022 · Disruption of the manufacture of the drug.
Resolved
MAGNESIUM SULFATE INJECTION
500MG · SOLUTION · FRESENIUS KABI CANADA LTD
DIN 02139499 · ended Apr 30, 2022 · Disruption of the manufacture of the drug.
Resolved
MAGNESIUM SULFATE INJECTION
500MG · SOLUTION · FRESENIUS KABI CANADA LTD
DIN 02139499 · ended Dec 22, 2020 · Disruption of the manufacture of the drug.
Showing 12 of 14 reports. All reports are on file with Health Canada.
What's happening
Magnesium is currently affected by an active shortage report filed with Health Canada by SANDOZ CANADA INCORPORATED.
The reported cause is: allocation at 100%. 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.
Magnesium is classified under “I.V. SOLUTION ADDITIVES” (ATC B05XA).
Recent changes
No changes recorded yet.
Common questions
When will Magnesium 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 Magnesium 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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Drugs in the same therapeutic class, best-supplied first. These are not automatic substitutes: only your pharmacist or prescriber can judge whether a switch makes sense for you.
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.