DrugDashboards

Ondansetron

ondansetron hydrochloride · ONDANSETRON HYDROCHLORIDE 4 mg/5mL · Solution · Oral · Taro Pharmaceuticals U.S.A., Inc.

NDC 51672-4091-03 · 1 BOTTLE in 1 CARTON / 50 mL in 1 BOTTLE · ANDA · View full market →

The short version

10 companies supply this market — deep enough that no single failure threatens the supply. The price is up 15% over the past year, to $0.2901 per unit.

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

Medicare Part D

All Part D pricing →

Matched to CMS's representative package for this drug (NDC 00054-0064-47) — same generic, strength, and dosage form. CMS prices one NDC per drug concept, not every package.

ⓘ 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
$0.4725per unit
middle half $0.3697$0.7338 · 5,173 plans · Apr 1, 2026
Est. net of rebates
≈ $0.4725
generic — rebates are minimal, so net ≈ gross
Coverage & restrictions
94%of plans cover it
tier 4 · prior auth 90% · step therapy 0% · qty limit 57%

*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 10 quarters since 2024.

NADAC price per unit

$0$0.5$1.00Nov 2013Feb 2024$0.2901
124 price points · per · last surveyed Invalid Date · dashed = manufacturer avg (WAMP)Source: CMS NADAC

Estimated fill cost

WAC per package, as filed
$17.05
Reported to Texas DSHS · 2026 annual filing · Taro

Manufacturer list price as filed — not what pharmacies actually pay after discounts.

Medicaid spend (2025)

$17,000
793 prescriptions paid by Medicaid nationally · all Medicaid spend →

Supply fragility

Not scored — fragility is computed for NADAC-priced NDCs.

90-day shortage risk (model v2)

0.1%chance of a new FDA shortage posting for ondansetron hydrochloride (other) in the next 90 days

sole-source market

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
ANDA077009
TE code
Approval date
Nov 30, 2007
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 ondansetron hydrochloride (Solution)

LabelerStrengthFirst seenLast seen
Atlantic Biologics Corp.ONDANSETRON HYDROCHLORIDE 4 mg/5mLJul 15, 2026Sep 2, 2026
Aurobindo Pharma LimitedONDANSETRON HYDROCHLORIDE 4 mg/5mLJul 15, 2026Sep 2, 2026
Baxter Healthcare CorporationONDANSETRON HYDROCHLORIDE 2 mg/mLJul 15, 2026Sep 2, 2026
Cardinal Health 107, LLCONDANSETRON HYDROCHLORIDE 2 mg/mLJul 15, 2026Sep 2, 2026
Chartwell Governmental & Specialty RX, LLC.ONDANSETRON HYDROCHLORIDE 4 mg/5mLJul 15, 2026Sep 2, 2026
Chartwell RX, LLC.ONDANSETRON HYDROCHLORIDE 4 mg/5mLJul 15, 2026Sep 2, 2026
Hikma Pharmaceuticals USA Inc.ONDANSETRON HYDROCHLORIDE 4 mg/5mLJul 15, 2026Sep 2, 2026
NorthStar Rx LLCONDANSETRON HYDROCHLORIDE 4 mg/5mLJul 15, 2026Sep 2, 2026
NuCare Pharmaceuticals,Inc.ONDANSETRON HYDROCHLORIDE 4 mg/5mLJul 15, 2026Sep 2, 2026
Precision Dose Inc.ONDANSETRON HYDROCHLORIDE 4 mg/5mLJul 15, 2026Sep 2, 2026
Taro Pharmaceuticals U.S.A., Inc.ONDANSETRON HYDROCHLORIDE 4 mg/5mLJul 15, 2026Jul 15, 2026

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

Cite this page

DrugDashboards, "Ondansetron — NDC 51672-4091-03," retrieved September 3, 2026, https://drugdashboards.com/drug/51672409103.

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