Source: Health Canada shortage reports · Updated Sep 25, 2026
Some Tetrabenazine products are in shortage in Canada (1 of 4 reported products), while others remain available. Your pharmacy may be able to substitute an unaffected manufacturer. The latest estimate for affected products to return is Oct 16, 2026.
A medicine used to treat involuntary movements (chorea) in Huntington's disease.
Products affected
1 / 4
In shortage since
Sep 8, 2026
Est. full return
Oct 16, 2026
Reports on file
16
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
APO-TETRABENAZINE
25MG · TABLET · APOTEX INC
DIN 02407590 · since Sep 8, 2026, est. end Oct 16, 2026 · Disruption of the manufacture of the drug.
Resolved
APO-TETRABENAZINE
25MG · TABLET · APOTEX INC
DIN 02407590 · ended Mar 20, 2025 · Disruption of the manufacture of the drug.
Resolved
APO-TETRABENAZINE
25MG · TABLET · APOTEX INC
DIN 02407590 · ended Sep 19, 2024 · Disruption of the manufacture of the drug.
Resolved
APO-TETRABENAZINE
25MG · TABLET · APOTEX INC
DIN 02407590 · ended Feb 1, 2024 · Disruption of the manufacture of the drug.
Resolved
APO-TETRABENAZINE
25MG · TABLET · APOTEX INC
DIN 02407590 · ended Sep 30, 2023 · Disruption of the manufacture of the drug.
Resolved
APO-TETRABENAZINE
25MG · TABLET · APOTEX INC
DIN 02407590 · ended Jun 22, 2023 · Disruption of the manufacture of the drug.
Resolved
APO-TETRABENAZINE
25MG · TABLET · APOTEX INC
DIN 02407590 · ended Mar 3, 2023 · Disruption of the manufacture of the drug.
Resolved
NITOMAN
25MG · TABLET · BAUSCH HEALTH, CANADA INC.
DIN 02199270 · ended May 17, 2022 · awaiting documents from supplier
Resolved
APO-TETRABENAZINE
25MG · TABLET · APOTEX INC
DIN 02407590 · ended Sep 3, 2021 · Disruption of the manufacture of the drug.
Resolved
APO-TETRABENAZINE
25MG · TABLET · APOTEX INC
DIN 02407590 · ended Apr 30, 2021 · Disruption of the manufacture of the drug.
Resolved
APO-TETRABENAZINE
25MG · TABLET · APOTEX INC
DIN 02407590 · ended Oct 9, 2020 · Disruption of the manufacture of the drug.
Resolved
PMS-TETRABENAZINE
25MG · TABLET · PHARMASCIENCE INC
DIN 02402424 · ended Oct 31, 2019 · Disruption of the manufacture of the drug.
Showing 12 of 16 reports. All reports are on file with Health Canada.
What's happening
Tetrabenazine is currently affected by an active shortage report filed with Health Canada by APOTEX 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.
Tetrabenazine is classified under “OTHER NERVOUS SYSTEM DRUGS” (ATC N07XX).
Recent changes
Sep 25, 2026
Estimated end date pushed back : Oct 2, 2026 → Oct 16, 2026
Sep 11, 2026
New report filed
Common questions
What is Tetrabenazine used for?
A medicine used to treat involuntary movements (chorea) in Huntington's disease.
When will Tetrabenazine be back in stock in Canada?
The latest manufacturer estimate is Oct 16, 2026. Estimates are self-reported and often slip; this page updates automatically when they change.
Why is Tetrabenazine 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.