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Live data · NADAC + Part D CY24 · reviewed daily

Metolazone

Thiazide-like Diuretic class · 10 generic manufacturers · 30 ANDAs filed at FDA.

First FDA approval2003-12-19
Generic availableYes · 10 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

$20.8M in CY2024 Part D spend956K claims · 353K beneficiaries · 329 plans surveyed

Lowest NADAC
$0.222/unit
20 NDCs benchmarked, lowest of all strengths.
Average NADAC
$0.252
Across all dosage forms in distribution.
Highest NADAC
$0.307
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 Metolazone used for?

Metolazone is a Thiazide-like Diuretic medication tracked in Medicare Part D.

Is there a generic for Metolazone?

Yes. 30 ANDAs filed at FDA, 10 generic manufacturers currently shipping.

How much does my plan pay for Metolazone?

Across 329 Part D plans, Metolazone averages $0.252/unit (NADAC). Lowest available: $0.222/unit. Highest in distribution: $0.307/unit.

Is Metolazone on the FDA shortage list?

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

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.

Thiazide-like Diuretic5 alternatives in D1
01
Atenolol and Chlorthalidone
Brand: TENORETIC
$0.265Lowest NADAC
5Generic mfrs
CY24 Part D spend
Compare →
02
Atenolol and Chlorthalidone Tablet
Brand: ATENOLOL AND CHLORTHALIDONE
Lowest NADAC
0Generic mfrs
CY24 Part D spend
Compare →
03
Azilsartan Kamedoxomil and Chlorthalidone
Brand: Edarbyclor
$8.49Lowest NADAC
1Generic mfrs
CY24 Part D spend
Compare →
04
Chlorthalidone
Brand: HEMICLOR
$0.085Lowest NADAC
16Generic mfrs
$71.4MCY24 Part D spend
Compare →
05
Indapamide
Thiazide-like Diuretic
$0.105Lowest NADAC
3Generic mfrs
$7.8MCY24 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.