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Live data · NADAC + Part D CY24 · reviewed daily

Prazosin

alpha-Adrenergic Blocker class · 9 generic manufacturers · 27 ANDAs filed at FDA.

First FDA approval1989-02-28
Generic availableYes · 9 mfrs
Shortage statusDiscontinued
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

$37.6M in CY2024 Part D spend2.0M claims · 410K beneficiaries · 329 plans surveyed

Lowest NADAC
$0.085/unit
20 NDCs benchmarked, lowest of all strengths.
Average NADAC
$0.085
Across all dosage forms in distribution.
Highest NADAC
$0.085
Range is tight.
Plans with PA
0 / 329
Zero PA friction — switching is purely formulary.

Questions a plan sponsor actually asks.

FAQPage schema9 entries indexed · 4 visible
What is Prazosin used for?

Prazosin is a alpha-Adrenergic Blocker medication tracked in Medicare Part D.

Is there a generic for Prazosin?

Yes. 27 ANDAs filed at FDA, 9 generic manufacturers currently shipping.

How much does my plan pay for Prazosin?

Across 329 Part D plans, Prazosin averages $0.085/unit (NADAC). Lowest available: $0.085/unit. Highest in distribution: $0.085/unit.

Is Prazosin on the FDA shortage list?

Prazosin has been discontinued by its manufacturer(s).

5 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.

Same class. Different math.

alpha-Adrenergic Blocker5 alternatives in D1
01
Alfuzosin
Brand: Uroxatral
$0.111Lowest NADAC
4Generic mfrs
$39.8MCY24 Part D spend
Compare →
02
Carvedilol
Brand: Coreg
$0.017Lowest NADAC
12Generic mfrs
$265.2MCY24 Part D spend
Compare →
03
Doxazosin
Brand: Cardura
$0.069Lowest NADAC
9Generic mfrs
$54.9MCY24 Part D spend
Compare →
04
Silodosin
Brand: RAPAFLO
$0.272Lowest NADAC
10Generic mfrs
$39.6MCY24 Part D spend
Compare →
05
Terazosin
Brand: TEZRULY
$0.109Lowest NADAC
5Generic mfrs
$42.2MCY24 Part D spend
Compare →

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 (10 approvals on file) · NADAC unit costs: CMS NADAC weekly file (20 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.