rxstat › Shortages › Polystyrene Sulfonate
Polystyrene Sulfonate shortage status
Widespread shortage
Source: Health Canada shortage reports · Updated Jul 9, 2026
Polystyrene Sulfonate is in a widespread shortage in Canada. 3 of 6 reported products are affected. The latest manufacturer estimate for full recovery is Oct 9, 2026.
In shortage since
Nov 1, 2024
Est. full return
Oct 9, 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 shortageSOLYSTAT
250MG · SUSPENSION · PENDOPHARM DIVISION OF PHARMASCIENCE INC
DIN 00769541 · since Dec 22, 2025, est. end Aug 17, 2026 · Shortage of an active ingredient.
Active shortageJAMP SODIUM POLYSTYRENE SULFONATE
1G · POWDER FOR SUSPENSION · JAMP PHARMA CORPORATION
DIN 02497557 · since Apr 21, 2026, est. end Oct 9, 2026 · Disruption of the manufacture of the drug.
Active shortageODAN-SODIUM POLYSTYRENE SULFONATE
250MG · SUSPENSION · ODAN LABORATORIES LTD
DIN 02473968 · since Nov 1, 2024, no end estimate · Disruption of the manufacture of the drug.
ResolvedSOLYSTAT
250MG · SUSPENSION · PENDOPHARM DIVISION OF PHARMASCIENCE INC
DIN 00769541 · ended Aug 8, 2025 · Shortage of an active ingredient.
ResolvedSOLYSTAT
250MG · SUSPENSION · PENDOPHARM DIVISION OF PHARMASCIENCE INC
DIN 00769541 · ended May 8, 2025 · Shortage of an active ingredient.
ResolvedSOLYSTAT
250MG · SUSPENSION · PENDOPHARM DIVISION OF PHARMASCIENCE INC
DIN 00769541 · ended Mar 31, 2025 · Shortage of an active ingredient.
ResolvedSOLYSTAT
250MG · SUSPENSION · PENDOPHARM DIVISION OF PHARMASCIENCE INC
DIN 00769541 · ended Feb 21, 2025 · Disruption of the manufacture of the drug.
ResolvedSOLYSTAT
250MG · SUSPENSION · PENDOPHARM DIVISION OF PHARMASCIENCE INC
DIN 00769541 · ended Jan 17, 2025 · Disruption of the manufacture of the drug.
ResolvedSOLYSTAT
250MG · SUSPENSION · PENDOPHARM DIVISION OF PHARMASCIENCE INC
DIN 00769541 · ended Nov 8, 2024 · Disruption of the manufacture of the drug.
ResolvedSOLYSTAT
1G · POWDER FOR SUSPENSION
POWDER · PENDOPHARM DIVISION OF PHARMASCIENCE INC
DIN 00755338 · ended Oct 15, 2024 · Shortage of an active ingredient.
ResolvedSOLYSTAT
250MG · SUSPENSION · PENDOPHARM DIVISION OF PHARMASCIENCE INC
DIN 00769541 · ended Aug 30, 2024 · Shortage of an active ingredient.
ResolvedKAYEXALATE
1G · POWDER FOR SUSPENSION
POWDER · SANOFI-AVENTIS CANADA INC
DIN 02026961 · ended Jul 31, 2024 · Other (Please describe in comments)
Showing 12 of 27 reports. All reports are on file with Health Canada.
What's happening
Polystyrene Sulfonate is currently affected by 3 active shortage reports filed with Health Canada by PENDOPHARM DIVISION OF PHARMASCIENCE INC, JAMP PHARMA CORPORATION, ODAN LABORATORIES LTD.
The reported causes are: shortage of an active ingredient; 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.
Polystyrene Sulfonate is classified under “ALL OTHER THERAPEUTIC PRODUCTS” (ATC V03AE).
Recent changes
Common questions
When will Polystyrene Sulfonate be back in stock in Canada?
The latest manufacturer estimate is Oct 9, 2026. Estimates are self-reported and often slip; this page updates automatically when they change.
Why is Polystyrene Sulfonate 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.