ERY-TAB DR 250 MG TABLET
FDA nonproprietary name: erythromycin
For 30 tablets
Pharmacies pay
$57.75 filed
30 × $1.92505 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
We don’t know yet
No Medicare reference price. Part D: OpenBill did not match this NDC to a usable Medicare Part D spending row. Either Part D has none for it, or the rows that share its name could not safely be tied to it (for example, they mix units, routes or release forms, or the drug is sold over the counter, which Part D does not cover). Part B: This NDC is not in the current quarter’s Medicare Part B NDC-HCPCS crosswalk, so it has no Part B payment limit.
The spread
We don’t know yet
There is no Medicare figure to compare with, so there is no spread.
Cost-plus estimate
$71.41 estimated
$57.75 + $8.66 (15%) + $5.00 fee per fill = $71.41
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
ERY-TAB DR 250 MG TABLET is how the CMS NADAC file names this product. The FDA NDC Directory lists it as erythromycin, under the trade name “ERY-TAB”.
FDA gives its dosage form as tablet, delayed release and its route as oral.
The labeler, the company named on the label, is Arbor Pharmaceuticals, Inc.
FDA lists it under 2 Established Pharmacologic Classes: Macrolide and Macrolide Antimicrobial.
The NADAC file of 2026-10-14 prices it under one NDC (National Drug Code), 24338-0122-03.
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 $57.75 for 30 tablets (30 × $1.92505 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 code for it: 1, calculated from the most recently completed pharmacy survey.
What NADAC measures · Why 30 tablets · NADAC explanation codes
The NDC
- 24338-0122-03 · Arbor Pharmaceuticals, Inc. · $1.92505 per EA · eff. 2026-09-23 filed
Other strengths, forms and brands
14 other products in the NADAC file share the FDA nonproprietary name erythromycin with ERY-TAB DR 250 MG TABLET.
| Product | Pharmacies pay per unit | Medicare per unit |
|---|---|---|
| ERY 2% PADS | $1.23477 per EA filed | $1.02817 per EA filed |
| ERY-TAB DR 250 MG TABLET this page | $1.92505 per EA filed | We don’t know yet |
| ERY-TAB DR 333 MG TABLET | $3.25776 per EA filed | We don’t know yet |
| ERY-TAB DR 500 MG TABLET | $3.11442 per EA filed | We don’t know yet |
| ERYTHROMYCIN 0.5% EYE OINTMENT | $2.82657 to $6.83399 per GM filed | We don’t know yet |
| ERYTHROMYCIN 2% GEL | $0.67256 to $0.6827 per GM filed | We don’t know yet |
| ERYTHROMYCIN 2% SOLUTION | $0.35204 per ML filed | We don’t know yet |
| ERYTHROMYCIN 200 MG/5 ML SUSP | $0.91229 to $1.52026 per ML filed | We don’t know yet |
| ERYTHROMYCIN 250 MG TABLET | $1.95521 per EA filed | We don’t know yet |
| ERYTHROMYCIN 400 MG/5 ML SUSP | $1.74359 per ML filed | We don’t know yet |
| ERYTHROMYCIN 500 MG TABLET | $2.51038 per EA filed | We don’t know yet |
| ERYTHROMYCIN DR 250 MG CAP | $5.95998 per EA filed | We don’t know yet |
| ERYTHROMYCIN DR 250 MG TABLET | $1.92505 per EA filed | We don’t know yet |
| ERYTHROMYCIN DR 333 MG TABLET | $3.25776 per EA filed | We don’t know yet |
| ERYTHROMYCIN DR 500 MG TABLET | $3.11442 per EA 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
Compared with its class
Its NADAC price is $1.92505 per EA filed.
Of the 9 other products in FDA’s Macrolide class priced per EA, 7 have a higher middle NADAC price and 1 a lower one; 1 has the same. The one in the middle is ERY-TAB DR 500 MG TABLET, at $3.11442 per EA filed (eff. 2026-09-23).
Of the 15 other products in FDA’s Macrolide Antimicrobial class priced per EA, 7 have a higher middle NADAC price and 7 a lower one; 1 has the same. The one in the middle is ERYTHROMYCIN DR 250 MG TABLET, at $1.92505 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
We don’t know yet; the card above says why.
Which Medicare figure OpenBill compares · How Part D is matched · How Part B is matched
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 30 tablets? Is it lower than what I would pay through my insurance?
- These are questions about price, not medical advice. Do not change or stop a medicine without talking to your prescriber or pharmacist.
Related pages
Its pharmacologic classes
Related in the same class
- ERYTHROMYCIN-BENZOYL GEL
- AZASITE 1% EYE DROPS
- CLARITHROMYCIN ER 500 MG TAB
- AZITHROMYCIN 100 MG/5 ML SUSP