Product Information
ERY-TAB DR 500 MG TABLET is a generic product labeled by Arbor Pharmaceuticals, Inc., priced at $3.1144 per EA under NDC 24338012603. Its NADAC has been published 266 times since Feb 7, 2018.
FDA first approved this application before 1982. Its Orange Book therapeutic-equivalence code is AB — FDA rates it therapeutically equivalent to (substitutable for) its reference product.
Strength
500 mg/1
Manufacturer
Arbor Pharmaceuticals, Inc.NDC
24338012603
Classification
Generic
Dosage Form
TABLET, DELAYED RELEASE
Route
ORAL
Effective Date
9/23/2026
Active Ingredients
ERYTHROMYCINApproval Type
Generic (ANDA)
FDA Application
ANDA062298FDA Approved
Before 1982
TE Code
AB
On Market Since
4/18/2011
Pharmacological Classes
Price Statistics
The NADAC for ERY-TAB DR 500 MG TABLET has been published 266 times since Feb 7, 2018, and over the history we have for it it has declined 66.1%. The table below summarizes its recorded NADAC range and movement.
| Current price | $3.1144 per EA |
|---|---|
| All-time high | $11.0273 (Mar 13, 2019) |
| All-time low | $2.9231 (Jun 17, 2026) |
| 52-week high | $3.8800 |
| 52-week low | $2.9231 |
| Median price | $4.8465 |
| Average price | $5.7649 |
| Largest weekly change | -42.2% (May 18, 2022) |
| Weeks tracked | 266 |
| Tracking since | Feb 7, 2018 |
Generic Alternatives
The matcher finds 6 manufacturers offering a NADAC-published product with this drug's active ingredient and strength in a comparable dosage form (cheapest from each manufacturer, up to 10 shown below). Switching to the cheapest would cut per-unit acquisition cost by roughly 19% at current NADAC. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
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Same classification
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Manufacturer
Arbor Pharmaceuticals, Inc. manufacturer profile
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Therapeutic class
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Trend hub
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Guide
Understanding NADAC pricing
Use the explainer when you need context on how CMS publishes NADAC and how to interpret the number on this page.
Frequently asked questions
What is the NADAC price of ERY-TAB DR 500 MG TABLET?
The current National Average Drug Acquisition Cost (NADAC) for ERY-TAB DR 500 MG TABLET, manufactured by Arbor Pharmaceuticals, Inc., is $3.1144 per EA (NDC 24338012603), effective Sep 30, 2026.
How has the price of ERY-TAB DR 500 MG TABLET changed over time?
Over the history we have for it, the NADAC for ERY-TAB DR 500 MG TABLET has declined 66.1%. It has been tracked across 266 weekly CMS publications since Feb 7, 2018.
What are the highest and lowest recorded NADAC prices for ERY-TAB DR 500 MG TABLET?
Since Feb 7, 2018, the NADAC for ERY-TAB DR 500 MG TABLET has ranged from a low of $2.9231 (Jun 17, 2026) to a high of $11.0273 (Mar 13, 2019), with a median of $4.8465 per EA.
Are there cheaper alternatives to ERY-TAB DR 500 MG TABLET?
Yes. 6 manufacturers publish a NADAC-priced product with the same active ingredient and strength in a comparable dosage form. The lowest-priced option, ERYTHROMYCIN 500 MG TABLET, is $2.5104 per EA — about 19% below ERY-TAB DR 500 MG TABLET.
Who manufactures ERY-TAB DR 500 MG TABLET?
ERY-TAB DR 500 MG TABLET (NDC 24338012603) is labeled by Arbor Pharmaceuticals, Inc., and CMS classifies it as a generic product.