Polystyrene Sulfonate: uses, dosing, side effects & brands
Polystyrene Sulfonate is a medicine sold in the U.S. under one brand. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Available as
- Powder
- Sold as
- Kayexalate
- Prescription?
- Prescription only
- Generic available?
- Not in our catalog
Every polystyrene sulfonate product we track (1)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
Only one: Kayexalate.
How long polystyrene sulfonate keeps
The date on a sealed pack is not the only one: some polystyrene sulfonate labels start a second clock once the product is opened or mixed, as short as 24 hours.
Does polystyrene sulfonate expire? The in-use limits and storage rules from its labelsRelated calculators
Frequently asked questions
Can you take polystyrene sulfonate with other medicines?
It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run polystyrene sulfonate against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What forms does polystyrene sulfonate come in?
Across the brands we track, polystyrene sulfonate is currently marketed as powder, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.
Is there a generic polystyrene sulfonate?
We do not currently list a generic-labelled polystyrene sulfonate product. That does not always mean none exists — it means none appears under a generic name in the FDA data we track. Ask your pharmacist.
Cite this page
- APA
- pharmaranks. (2026, July 24). Polystyrene Sulfonate: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/polystyrene-sulfonate
- MLA
- “Polystyrene Sulfonate: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/polystyrene-sulfonate.
We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.
Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.
Read the full FDA label for polystyrene sulfonate on DailyMed (NIH) ↗.