Product Information
SPIRONOLACTONE 25 MG TABLET is a generic product labeled by Camber Pharmaceuticals Inc., priced at $0.0426 per EA under NDC 31722009410. Its NADAC has been published 32 times since Feb 25, 2026.
FDA first approved this application on Jul 25, 2025. Its Orange Book therapeutic-equivalence code is AB — FDA rates it therapeutically equivalent to (substitutable for) its reference product.
The High Outlier badge above means this manufacturer's average price in the spironolactone market falls above Q3 + 1.5·IQR across all competing manufacturers. We only apply this flag in markets with four or more competitors. Full definition: glossary → outlier.
Strength
25 mg/1
Manufacturer
Camber Pharmaceuticals Inc.NDC
31722009410
Classification
Generic
Dosage Form
TABLET, FILM COATED
Route
ORAL
Effective Date
9/23/2026
Active Ingredients
SPIRONOLACTONEApproval Type
Generic (ANDA)
FDA Application
ANDA217761FDA Approved
7/25/2025
TE Code
AB
On Market Since
7/25/2025
Pharmacological Classes
Price Statistics
The NADAC for SPIRONOLACTONE 25 MG TABLET has been published 32 times since Feb 25, 2026, and over the history we have for it it has declined 7.0%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.0426 per EA |
|---|---|
| All-time high | $0.0458 (Mar 11, 2026) |
| All-time low | $0.0426 (Sep 23, 2026) |
| 52-week high | $0.0458 |
| 52-week low | $0.0426 |
| Median price | $0.0445 |
| Average price | $0.0444 |
| Largest weekly change | -2.1% (Jul 22, 2026) |
| Weeks tracked | 32 |
| Tracking since | Feb 25, 2026 |
Generic Alternatives
The matcher finds 7 manufacturers offering a NADAC-published product with this drug's active ingredient and strength in a comparable dosage form (cheapest from each manufacturer, up to 10 shown below). None of the shown alternatives sit below the current price. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Related Drugs
Same classification
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Manufacturer
Camber Pharmaceuticals Inc. manufacturer profile
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Drug market
spironolactone market comparison
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Therapeutic class
Aldosterone Antagonist class view
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Trend hub
Latest market trends
Zoom back out to the weekly mover view and compare this NDC with the rest of the current NADAC release.
Guide
Understanding NADAC pricing
Use the explainer when you need context on how CMS publishes NADAC and how to interpret the number on this page.
Frequently asked questions
What is the NADAC price of SPIRONOLACTONE 25 MG TABLET?
The current National Average Drug Acquisition Cost (NADAC) for SPIRONOLACTONE 25 MG TABLET, manufactured by Camber Pharmaceuticals Inc., is $0.0426 per EA (NDC 31722009410), effective Sep 30, 2026.
How has the price of SPIRONOLACTONE 25 MG TABLET changed over time?
Over the history we have for it, the NADAC for SPIRONOLACTONE 25 MG TABLET has declined 7.0%. It has been tracked across 32 weekly CMS publications since Feb 25, 2026.
What are the highest and lowest recorded NADAC prices for SPIRONOLACTONE 25 MG TABLET?
Since Feb 25, 2026, the NADAC for SPIRONOLACTONE 25 MG TABLET has ranged from a low of $0.0426 (Sep 23, 2026) to a high of $0.0458 (Mar 11, 2026), with a median of $0.0445 per EA.
Are there cheaper alternatives to SPIRONOLACTONE 25 MG TABLET?
7 manufacturers publish a NADAC-priced product with the same active ingredient and strength as SPIRONOLACTONE 25 MG TABLET in a comparable dosage form, but none are currently priced below it.
Who manufactures SPIRONOLACTONE 25 MG TABLET?
SPIRONOLACTONE 25 MG TABLET (NDC 31722009410) is labeled by Camber Pharmaceuticals Inc., and CMS classifies it as a generic product.