DrugDashboards

Ery-Tab

Erythromycin · ERYTHROMYCIN 250 mg/1 · Tablet, Delayed Release · Oral · Arbor Pharmaceuticals, Inc.

NDC 24338-0122-03 · 30 TABLET, DELAYED RELEASE in 1 BOTTLE · ANDA · View full market →

The short version

5 companies supply this market — a reasonable cushion if one runs into trouble. The price is down 9% over the past year, to $2.08 per unit. Put together: this looks like a healthy supply — the boring kind, which is exactly what you want.

The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.

One drug, every price

The same NDC has different prices depending on who is paying. Units differ between rungs — compare within a rung over time, not rung against rung, unless the units match.

ⓘ How this was built
Data sources
  • CMS NADAC (pharmacy acquisition, weekly)
  • CMS Part B ASP quarterly payment limits
  • CMS Maximum Fair Prices (IRA negotiated, NDC-level)
  • Medicare Part D Spending by Drug (data.cms.gov, name-matched)
  • VA FSS / Big4 federal contract prices (va.gov, twice monthly)
  • ACA Federal Upper Limits + weighted AMP (data.medicaid.gov, monthly)
  • California SB-17 WAC filings (list price, per package)
Method

Each rung is the newest figure for this NDC from one federal price system, shown with its own unit. Part D is matched by drug name because CMS publishes no NDCs there; it is gross spending, before confidential rebates.

Pipeline and calculations built by Claude (Fable 5) from the public datasets above. Educational only — verify against primary sources before acting.

  • Pharmacies pay (NADAC)$2.08per EAinvoice-surveyed acquisition cost · Aug 19, 2026
  • Part D plans paid (avg)$5.88per dosage unitgross, before rebates — matched by drug name · 2024
  • Part D point of sale (median)$3.69per unitnegotiated price across 2,337 plans — before rebates · Apr 1, 2025
  • Medicaid generic ceiling (FUL)$2.75per TABweighted avg manufacturer price $0.8482 · Dec 1, 2024132% of what pharmacies pay — higher than 76% of drugs with this benchmark
  • List price (WAC, as filed)$256.07per packageARBOR PHARMACEUTICALS, INC. · Oct 1, 2022

Medicare Part D

All Part D pricing →
ⓘ How this was built
Data sources
  • CMS quarterly Prescription Drug Plan Formulary & Pricing files (SPUF)
Method

Negotiated 30-day point-of-sale unit prices and formulary terms aggregated across every unsuppressed Part D and MA-PD plan for the quarter shown. Point of sale means gross of confidential rebates. CMS publishes one representative NDC per drug concept (RxCUI) rather than every package, so these figures come from CMS's representative package for the same drug — matched on generic name, strength, and dosage form. Estimated from MedPAC's program-wide rebate aggregates (June 2023: DIR = 29% of gross Part D spending; brand rebates ≈ 25–40% of gross, generics minimal). Actual rebates are confidential and vary widely by drug — this is a range, not a fact about this drug.

Pipeline and calculations built by Claude (Fable 5) from the public datasets above. Educational only — verify against primary sources before acting.

Plans pay at point of sale
$3.69per unit
middle half $2.06$4.48 · 2,337 plans · Apr 1, 2025
Est. net of rebates
≈ $3.69
generic — rebates are minimal, so net ≈ gross
Coverage & restrictions
of plans cover it

*No drug-level rebate is public — the estimate applies MedPAC's program-wide brand rebate range to this drug's gross price. Tracked here for 6 quarters since 2024.

NADAC price per unit

$0$2.50$5.00$7.50Feb 2018Sep 2026$2.08
64 price points · per EA · dashed = manufacturer avg (WAMP)Source: CMS NADAC

Estimated fill cost

#30 count
$62.54
#90 count
$187.63

Estimates: latest NADAC unit price × quantity. Pharmacy acquisition cost only — excludes dispensing fees, markup, and insurance terms.

Supply fragility

5Low risk

Some pressure is visible, but not much — here’s everything the score found to count.

  • 5 active manufacturers+5

The score counts pressure that is already visible — fewer makers, shortages, recalls, falling prices. 0 means none of it; 100 means all of it at once. Recomputed daily · as of Sep 3, 2026

90-day shortage risk (model v2)

0.1%chance of a new FDA shortage posting for erythromycin (oral solid) in the next 90 days

sole-source market · 2 Class I/II recall(s) in 12 months

For scale: the typical drug’s chance is about 0.1% — this one is in ordinary territory.

Backtested statistical model over the whole market, not this package alone. Model details →

Regulatory

Application
ANDA062298
TE code
AB
Approval date
Jan 1, 1982
Patents / exclusivity
None on file

Shortage history

No FDA shortage reports for this drug or its presentations.

Recalls (this NDC)

No enforcement reports list this package NDC.

Manufacturers of Erythromycin (Tablet, Delayed Release)

LabelerStrengthFirst seenLast seen
Amneal Pharmaceuticals NY LLCERYTHROMYCIN 500 mg/1Jul 15, 2026Sep 2, 2026
Amneal Pharmaceuticals NY LLCERYTHROMYCIN 333 mg/1Jul 15, 2026Sep 2, 2026
Amneal Pharmaceuticals NY LLCERYTHROMYCIN 250 mg/1Jul 15, 2026Sep 2, 2026
Arbor Pharmaceuticals, Inc.ERYTHROMYCIN 250 mg/1Jul 15, 2026Sep 2, 2026
Arbor Pharmaceuticals, Inc.ERYTHROMYCIN 333 mg/1Jul 15, 2026Sep 2, 2026
Arbor Pharmaceuticals, Inc.ERYTHROMYCIN 500 mg/1Jul 15, 2026Sep 2, 2026
Golden State Medical Supply, Inc.ERYTHROMYCIN 500 mg/1Jul 15, 2026Sep 2, 2026
Golden State Medical Supply, Inc.ERYTHROMYCIN 250 mg/1Jul 15, 2026Sep 2, 2026
Torrent Pharmaceuticals LimitedERYTHROMYCIN 333 mg/1Jul 15, 2026Sep 2, 2026
Torrent Pharmaceuticals LimitedERYTHROMYCIN 250 mg/1Jul 15, 2026Sep 2, 2026
Torrent Pharmaceuticals LimitedERYTHROMYCIN 500 mg/1Jul 15, 2026Sep 2, 2026
Wilshire PharmaceuticalsERYTHROMYCIN 250 mg/1Jul 15, 2026Sep 2, 2026
Wilshire PharmaceuticalsERYTHROMYCIN 500 mg/1Jul 15, 2026Sep 2, 2026
Wilshire PharmaceuticalsERYTHROMYCIN 333 mg/1Jul 15, 2026Sep 2, 2026

Roster from daily NDC Directory diffs — first/last seen dates start July 2026.

Cite this page

DrugDashboards, "Ery-Tab — NDC 24338-0122-03," retrieved September 3, 2026, https://drugdashboards.com/drug/24338012203.

Free to cite with attribution — see how the data is put together.