Product Information
SPIRONOLACTONE 100 MG TABLET is a generic product labeled by Camber Pharmaceuticals Inc., priced at $0.1699 per EA under NDC 31722009605. Its NADAC has been published 26 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
100 mg/1
Manufacturer
Camber Pharmaceuticals Inc.NDC
31722009605
Classification
Generic
Dosage Form
TABLET, FILM COATED
Route
ORAL
Effective Date
8/19/2026
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 100 MG TABLET has been published 26 times since Feb 25, 2026, and over the history we have for it it has declined 6.3%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.1699 per EA |
|---|---|
| All-time high | $0.1813 (Mar 11, 2026) |
| All-time low | $0.1699 (Aug 19, 2026) |
| 52-week high | $0.1813 |
| 52-week low | $0.1699 |
| Median price | $0.1784 |
| Average price | $0.1777 |
| Largest weekly change | -2.6% (Aug 19, 2026) |
| Weeks tracked | 26 |
| Tracking since | Feb 25, 2026 |
Generic Alternatives
The matcher finds 5 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
Frequently asked questions
What is the NADAC price of SPIRONOLACTONE 100 MG TABLET?
The current National Average Drug Acquisition Cost (NADAC) for SPIRONOLACTONE 100 MG TABLET, manufactured by Camber Pharmaceuticals Inc., is $0.1699 per EA (NDC 31722009605), effective Aug 19, 2026.
How has the price of SPIRONOLACTONE 100 MG TABLET changed over time?
Over the history we have for it, the NADAC for SPIRONOLACTONE 100 MG TABLET has declined 6.3%. It has been tracked across 26 weekly CMS publications since Feb 25, 2026.
What are the highest and lowest recorded NADAC prices for SPIRONOLACTONE 100 MG TABLET?
Since Feb 25, 2026, the NADAC for SPIRONOLACTONE 100 MG TABLET has ranged from a low of $0.1699 (Aug 19, 2026) to a high of $0.1813 (Mar 11, 2026), with a median of $0.1784 per EA.
Are there cheaper alternatives to SPIRONOLACTONE 100 MG TABLET?
5 manufacturers publish a NADAC-priced product with the same active ingredient and strength as SPIRONOLACTONE 100 MG TABLET in a comparable dosage form, but none are currently priced below it.
Who manufactures SPIRONOLACTONE 100 MG TABLET?
SPIRONOLACTONE 100 MG TABLET (NDC 31722009605) is labeled by Camber Pharmaceuticals Inc., and CMS classifies it as a generic product.