OpenBilldrug price receipt

NADAC week of 2026-10-14

SULFASALAZINE DR 500 MG TAB

For 30 tablets

Pharmacies pay

$8.58 filed

30 × $0.28592 per EA

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

$6.23 filed

30 × $0.20782 per EA, 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

0.73× estimated

Medicare paid 27% less than pharmacies pay.

Part D averages every strength and form sold under “Sulfasalazine Dr” / “Sulfasalazine” 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

$14.87 estimated

$8.58 + $1.29 (15%) + $5.00 fee per fill = $14.87

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

SULFASALAZINE DR 500 MG TAB is how the CMS NADAC file names this product. The FDA NDC Directory lists it as sulfasalazine.

FDA gives its dosage form as tablet, delayed release and its route as oral.

The labeler, the company named on the label, is Mylan Pharmaceuticals Inc.

FDA’s Established Pharmacologic Class for it is Aminosalicylate.

The NADAC file of 2026-10-14 prices it under 2 NDCs (National Drug Codes).

NADAC classes it as a generic drug (rate-setting class G), and does not mark it as sold over the counter.

What pharmacies pay

Pharmacies pay $8.58 for 30 tablets (30 × $0.28592 per EA, 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; 6, the CMS Covered Outpatient Drug Product File S/I/N drug category was not applied when grouping drugs for the calculation.

All 2 NDCs

Other strengths, forms and brands

1 other product in the NADAC file shares the FDA nonproprietary name sulfasalazine with SULFASALAZINE DR 500 MG TAB.

ProductPharmacies pay per unitMedicare per unit
SULFASALAZINE 500 MG TABLET
generic · tablet
$0.1991 per EA filed
eff. 2026-09-23
$0.12521 per EA filed
Part D 2024 average
SULFASALAZINE DR 500 MG TAB this page
generic · tablet, delayed release
$0.28592 per EA filed
eff. 2026-09-23
$0.20782 per EA filed
Part D 2024 average

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. 2026-09-23 · 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

Compared with its class

The middle of its 2 NDCs’ NADAC prices is $0.28592 per EA filed.

Of the 12 other products in FDA’s Aminosalicylate class priced per EA, 11 have a higher middle NADAC price and 1 a lower one. The one in the middle is MESALAMINE DR 400 MG CAPSULE, at $2.69898 per EA filed (eff. 2026-09-23).

Prices are compared per unit, whatever the strength or dose, and a class is not a list of substitutes.

CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17

What Medicare paid

Medicare Part D paid $6.23 for 30 tablets, at an average of $0.20782 per EA in 2024 (2024-01-01 to 2024-12-31) for “Sulfasalazine Dr” and “Sulfasalazine”, every strength and form sold under that name together (Medicare Part D Spending by Drug, file of 2026-06-25).

That average covers 131,521 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 to ask at the counter

None of these figures is your price: what you pay depends on your pharmacy, your insurance, coupons and discounts.

Questions

Why is the comparison with Medicare for SULFASALAZINE DR 500 MG TAB 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 Sulfasalazine Dr / Sulfasalazine: all makers, strengths, forms and routes combined, claim-weighted; gross cost incl. dispensing fees and patient pay, before rebates. Unit taken as NADAC's EA. Joined on generic name.