OpenBilldrug price receipt

NADAC week of 2026-10-14

DIPHENOXYLATE-ATROPINE 2.5-0.025 MG TABLET

For 30 tablets

Pharmacies pay

$4.17 filed

30 × $0.13885 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

$7.85 filed

30 × $0.26154 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

1.9× estimated

Medicare paid 1.9× what pharmacies pay.

Part D averages every strength and form sold under “Diphenoxylate-Atropine” / “Diphenoxylate HCl/Atropine” 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

$9.80 estimated

$4.17 + $0.63 (15%) + $5.00 fee per fill = $9.80

This is a model, not a price any pharmacy quoted. Shipping is not included. For a pack this cheap, the $5.00 fee is most of the estimate. 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

DIPHENOXYLATE-ATROPINE 2.5-0.025 MG TABLET is how the CMS NADAC file names this product. The FDA NDC Directory lists it as diphenoxylate hydrochloride and atropine sulfate.

FDA gives its dosage form as tablet and its route as oral.

FDA lists 7 labelers (the companies named on the label) for its NDCs, among them SpecGx LLC, Mylan Pharmaceuticals Inc. and American Health Packaging.

FDA lists it under 3 Established Pharmacologic Classes: Anticholinergic, Antidiarrheal and Cholinergic Muscarinic Antagonist.

The NADAC file of 2026-10-14 prices it under 14 NDCs (National Drug Codes); the FDA directory lists 13 of them.

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 $4.17 for 30 tablets (30 × $0.13885 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.

The 7 labelers

LabelerNDCsPharmacies pay per unit
Winder Laboratories LLC3$0.13885 per EA filed
ANI Pharmaceuticals, Inc.2$0.13885 per EA filed
Leading Pharma, LLC2$0.13885 per EA filed
SpecGx LLC2$0.13885 per EA filed
Unichem Pharmaceuticals (USA), Inc.2$0.13885 per EA filed
American Health Packaging1$0.13885 per EA filed
Mylan Pharmaceuticals Inc.1$0.13885 per EA filed
Not listed as a package in the FDA directory1$0.13885 per EA filed
All 14 NDCs, with labeler and price
  • 00406-1236-01 · SpecGx LLC · $0.13885 per EA · eff. 2026-09-23 filed
  • 00406-1236-10 · SpecGx LLC · $0.13885 per EA · eff. 2026-09-23 filed
  • 59762-1061-01 · Mylan Pharmaceuticals Inc. · $0.13885 per EA · eff. 2026-09-23 filed
  • 60687-0890-01 · American Health Packaging · $0.13885 per EA · eff. 2026-09-23 filed
  • 60687-0890-11 · not listed as a package in the FDA directory · $0.13885 per EA · eff. 2026-09-23 filed
  • 62559-0490-01 · ANI Pharmaceuticals, Inc. · $0.13885 per EA · eff. 2026-09-23 filed
  • 62559-0490-10 · ANI Pharmaceuticals, Inc. · $0.13885 per EA · eff. 2026-09-23 filed
  • 69315-0910-01 · Leading Pharma, LLC · $0.13885 per EA · eff. 2026-09-23 filed
  • 69315-0910-10 · Leading Pharma, LLC · $0.13885 per EA · eff. 2026-09-23 filed
  • 75826-0107-00 · Winder Laboratories LLC · $0.13885 per EA · eff. 2026-09-23 filed
  • 75826-0107-03 · Winder Laboratories LLC · $0.13885 per EA · eff. 2026-09-23 filed
  • 75826-0107-90 · Winder Laboratories LLC · $0.13885 per EA · eff. 2026-09-23 filed
  • 76385-0107-01 · Unichem Pharmaceuticals (USA), Inc. · $0.13885 per EA · eff. 2026-09-23 filed
  • 76385-0107-10 · Unichem Pharmaceuticals (USA), Inc. · $0.13885 per EA · eff. 2026-09-23 filed

Other strengths, forms and brands

1 other product in the NADAC file shares the FDA nonproprietary name diphenoxylate hydrochloride and atropine sulfate with DIPHENOXYLATE-ATROPINE 2.5-0.025 MG TABLET.

ProductPharmacies pay per unitMedicare per unit
DIPHENOXYLATE-ATROPINE 2.5-0.025 MG TABLET this page
generic · tablet
$0.13885 per EA filed
eff. 2026-09-23
$0.26154 per EA filed
Part D 2024 average
LOMOTIL 2.5-0.025 MG TABLET
brand · tablet
$2.99096 per EA filed
eff. 2026-09-23
$2.82671 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 14 NDCs’ NADAC prices is $0.13885 per EA filed.

Of the 23 other products in FDA’s Anticholinergic class priced per EA, 17 have a higher middle NADAC price and 6 a lower one. The one in the middle is SCOPOLAMINE 1 MG/3 DAY PATCH, at $4.33565 per EA filed (eff. 2026-09-23).

Of the 25 other products in FDA’s Cholinergic Muscarinic Antagonist class priced per EA, 20 have a higher middle NADAC price and 5 a lower one. The one in the middle is TOLTERODINE TART ER 2 MG CAP, at $0.2678 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 $7.85 for 30 tablets, at an average of $0.26154 per EA in 2024 (2024-01-01 to 2024-12-31) for “Diphenoxylate-Atropine” and “Diphenoxylate HCl/Atropine”, every strength and form sold under that name together (Medicare Part D Spending by Drug, file of 2026-06-25).

That average covers 741,208 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 DIPHENOXYLATE-ATROPINE 2.5-0.025 MG TABLET 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 Diphenoxylate-Atropine / Diphenoxylate HCl/Atropine: 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.