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Live data · NADAC + Part D CY24 · reviewed daily

Ethambutol

First FDA approval2006-12-15
Generic availableYes · 2 mfrs
Shortage statusNone
340B exposureunknown
Last updated
NADAC: weekly (every Wed)Part D Formulary: quarterlyPart D Spend: annual (CY24)Orange Book: weeklyShortages: daily
At a glance · the numbers a plan sponsor wants on screen one

$5.8M in CY2024 Part D spend111K claims · 29K beneficiaries · 329 plans surveyed

Lowest NADAC
$0.341/unit
6 NDCs benchmarked, lowest of all strengths.
Average NADAC
$0.412
Across all dosage forms in distribution.
Highest NADAC
$0.447
Range is tight.
Plans with PA
0 / 329
Zero PA friction — switching is purely formulary.

Questions a plan sponsor actually asks.

FAQPage schema7 entries indexed · 4 visible
What is Ethambutol used for?

Ethambutol is a this drug class medication tracked in Medicare Part D.

Sources: CMS Part D Spending CY24 · CMS NADAC weekly · FDA Orange Book
Is there a generic for Ethambutol?

Yes. 4 ANDAs filed at FDA, 2 generic manufacturers currently shipping.

Sources: CMS Part D Spending CY24 · CMS NADAC weekly · FDA Orange Book
How much does my plan pay for Ethambutol?

Across 329 Part D plans, Ethambutol averages $0.412/unit (NADAC). Lowest available: $0.341/unit. Highest in distribution: $0.447/unit.

Sources: CMS Part D Spending CY24 · CMS NADAC weekly · FDA Orange Book
Is Ethambutol on the FDA shortage list?

No. Ethambutol is not currently on the FDA Drug Shortage Database.

Sources: CMS Part D Spending CY24 · CMS NADAC weekly · FDA Orange Book

3 additional drug-specific questions are indexed in the page's FAQPage schema for search engines and LLM crawlers, beyond what renders visually above. View page source for the complete JSON-LD.

Related questions.

Q&A librarySourced · reviewed quarterly
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Sources · every number above traces back.

Last refresh30 May 2026

Drug identity, dosage forms, brand names: openFDA NDC Directory · First approval, ANDA history: FDA Orange Book (6 approvals on file) · NADAC unit costs: CMS NADAC weekly file (6 NDCs benchmarked) · Formulary tier and PA placement: CMS Part D Formulary file (329 plans) · Annualized spend, claims, beneficiaries: CMS Part D Spending Dashboard (CY2024) · Shortage status: FDA Drug Shortage Database · 340B exposure: HRSA OPAIS. Methodology and reproducibility notes on /methodology.