KIONEX 15 GM/60 ML SUSPENSION
FDA nonproprietary name: sodium polystyrene sulfonate
For 60 mL
Pharmacies pay
$18.34 filed
60 × $0.30564 per ML
CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17
Medicare Part D paid
$21.94 filed
60 × $0.3657 per ML, Part D average
Medicare's price is not your price.
Medicare Part D · DSD_PTD_RY26_P04_V10_DY24_BGM.csv · eff. 2024-01-01 to 2024-12-31 · as of 2026-06-25 · retrieved 2026-10-18
The spread
1.2× estimated
Medicare paid 1.2× what pharmacies pay.
Part D averages every strength and form sold under “Kionex” / “Sodium Polystyrene Sulfon/Sorb” into one figure, so it is not specific to this NDC.
OpenBill calculation · DSD_PTD_RY26_P04_V10_DY24_BGM.csv + nadac-national-average-drug-acquisition-cost-20261014.csv · NADAC eff. 2026-09-23 (file of 2026-10-14, retrieved 2026-10-17) · Part D 2024-01-01 to 2024-12-31 (file of 2026-06-25, retrieved 2026-10-18)
Cost-plus estimate
$26.09 estimated
$18.34 + $2.75 (15%) + $5.00 fee per fill = $26.09
This is a model, not a price any pharmacy quoted. Shipping is not included. How it is worked out
OpenBill calculation · nadac-national-average-drug-acquisition-cost-20261014.csv · NADAC eff. 2026-09-23 (file of 2026-10-14, retrieved 2026-10-17)
Open the interactive card Change the quantity, type what you were charged, and see every record in full.
What it is
KIONEX 15 GM/60 ML SUSPENSION is how the CMS NADAC file names this product. The FDA NDC Directory lists it as sodium polystyrene sulfonate, under the trade name “Kionex”.
FDA gives its dosage form as suspension and its route as oral.
The labeler, the company named on the label, is ANI Pharmaceuticals, Inc.
FDA lists no Established Pharmacologic Class for it.
The NADAC file of 2026-10-14 prices it under one NDC (National Drug Code), 62559-0356-01.
NADAC classes it in its brand rate-setting class B-ANDA, and does not mark it as sold over the counter.
What pharmacies pay
Pharmacies pay $18.34 for 60 mL (60 × $0.30564 per ML, rounded to the cent), by the CMS NADAC file of 2026-10-14; that price took effect on 2026-09-23. That is what pharmacies pay their suppliers, not what they charge you.
NADAC’s explanation codes for it: 1, calculated from the most recently completed pharmacy survey; 5, calculated based on package size; 6, the CMS Covered Outpatient Drug Product File S/I/N drug category was not applied when grouping drugs for the calculation.
What NADAC measures · NADAC explanation codes
The NDC
- 62559-0356-01 · ANI Pharmaceuticals, Inc. · $0.30564 per ML · eff. 2026-09-23 filed
Other strengths, forms and brands
2 other products in the NADAC file share the FDA nonproprietary name sodium polystyrene sulfonate with KIONEX 15 GM/60 ML SUSPENSION.
| Product | Pharmacies pay per unit | Medicare per unit |
|---|---|---|
| KIONEX 15 GM/60 ML SUSPENSION this page | $0.30564 per ML filed | $0.3657 per ML filed |
| SODIUM POLYSTYRENE SULF POWDER | $0.0924 to $0.47405 per GM filed | $0.18302 per GM filed |
| SPS 15 GM/60 ML SUSPENSION | $0.38512 to $0.43798 per ML filed | We don’t know yet |
Part D is one average per brand and generic name, over every strength and form.
CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-04-22, 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17
Medicare Part D · DSD_PTD_RY26_P04_V10_DY24_BGM.csv · eff. 2024-01-01 to 2024-12-31 · as of 2026-06-25 · retrieved 2026-10-18
What Medicare paid
Medicare Part D paid $21.94 for 60 mL, at an average of $0.3657 per ML in 2024 (2024-01-01 to 2024-12-31) for “Kionex” and “Sodium Polystyrene Sulfon/Sorb”, every strength and form sold under that name together (Medicare Part D Spending by Drug, file of 2026-06-25).
That average covers 3,135 Part D claims (fills, including refills) for 2024-01-01 to 2024-12-31, across every maker, strength and form under the name.
Medicare's price is not your price.
What Part D spending measures · Which Medicare figure OpenBill compares · How the spread is worked out
What to ask at the counter
None of these figures is your price: what you pay depends on your pharmacy, your insurance, coupons and discounts.
- What is your cash price for 60 mL? Is it lower than what I would pay through my insurance?
- How much is in the package I am getting? This page uses 60 mL; your package may hold a different amount.
- If you have Medicare Part D: what is my plan’s copay or coinsurance for it? The Part D average on this page is not what you pay.
- These are questions about price, not medical advice. Do not change or stop a medicine without talking to your prescriber or pharmacist.
Questions
- Why is the comparison with Medicare for KIONEX 15 GM/60 ML SUSPENSION labelled estimated?
- Beyond what the card shows, the records give these reasons: The Part D figure covers 2024-01-01 to 2024-12-31; the NADAC price is from the file of 2026-10-14. Part D spending basis, as the Part D record states it: Part D 2024 average spend per dosage unit for Kionex / Sodium Polystyrene Sulfon/Sorb: all makers, strengths, forms and routes combined, claim-weighted; gross cost incl. dispensing fees and patient pay, before rebates. Unit taken as NADAC's ML. Joined on brand name.
- Why does this page start at 60 mL?
- NADAC prices this product per ML. In the FDA NDC Directory, NDC 62559-0356-01 (“10 BOTTLE in 1 CASE (62559-356-01) / 60 mL in 1 BOTTLE (62559-356-60)”) is a shipping case of 10 bottles, 600 mL in all: a wholesale pack of identical units, so OpenBill counts one bottle of it. So the card starts at one bottle: 60 ML. Change it to match your prescription.