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Prescription medicine · generic available

Spironolactone

Drug class: Aldosterone Antagonist

The FDA’s “Established Pharmacologic Class”: the group of medicines that work in a similar way.

Official FDA data, not advice

Everything here comes from the U.S. Food and Drug Administration (FDA): the drug label, the NDC Directory, Drugs@FDA, recall reports and the drug shortage list. Each fact shows its source and date.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

In an emergency, call 911. If someone may have taken too much of a medicine, call Poison Help: 1‑800‑222‑1222.

Quick answers

What is Spironolactone used for?
The FDA-approved label (Aldactone, Pfizer Laboratories Div Pfizer Inc, November 28, 2025) says: “ALDACTONE is an aldosterone antagonist indicated for: • The treatment of NYHA Class III–IV heart failure and reduced ejection fraction to increase survival, manage edema, and to reduce the need for hospitalization for heart failure. • Use as an add-on therapy for the treatment of hypertension, to lower blood pressure. …” This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.
Does Spironolactone have a boxed warning?
The label we quote has no boxed warning, but 7 of 122 FDA labels for this medicine do. Check the label of your own product.
Is there a shortage of Spironolactone?
The FDA drug shortage list shows “To be discontinued” for a product of this medicine (updated December 10, 2025). Ask your pharmacist about alternatives.
Has Spironolactone been recalled?
FDA enforcement reports list 2 recalls of products of this medicine; the newest started August 5, 2025 (Class II). A recall usually concerns specific lots, not every product.
Who makes Spironolactone?
39 companies list prescription products of Spironolactone in the FDA NDC Directory, including Bryant Ranch Prepack, Proficient Rx LP and A-S Medication Solutions.

What Spironolactone is used for

Quoted from the “Indications and Usage” section of the FDA-approved label.

ALDACTONE is an aldosterone antagonist indicated for: • The treatment of NYHA Class III–IV heart failure and reduced ejection fraction to increase survival, manage edema, and to reduce the need for hospitalization for heart failure. • Use as an add-on therapy for the treatment of hypertension, to lower blood pressure. …

— FDA label: Aldactone, Pfizer Laboratories Div Pfizer Inc, effective November 28, 2025. Read the full label on DailyMed →

The FDA has 122 labels for products of this medicine (different makers and forms); uses can differ between them. Check the label that comes with your own medicine.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

Conditions named on the label

These condition names appear word for word in the label’s “Indications and Usage” text (matched with a reviewed table). Each page lists hospitals whose own websites name the condition.

Related medical specialties

Boxed warning

A boxed warning (“black box”) is the FDA’s strongest warning on a drug label, for serious or life-threatening risks.

The label quoted above has no boxed warning.

7 of 122 FDA labels for this medicine have a boxed warning.

Forms and how it is given

Dosage formsTablet, film coated · Tablet · Tablet, coated · Suspension
RouteOral
Prescription products180 in the FDA NDC Directory
Brand namesAldactone

What pharmacies pay (NADAC)

The National Average Drug Acquisition Cost (NADAC) is the average price U.S. retail pharmacies paid to buy one unit of a medicine (one tablet, one mL or one gram), from a monthly survey of pharmacy invoices by the Centers for Medicare & Medicaid Services (CMS). State Medicaid programs use it to pay pharmacies.

This is not the price you pay. What you pay depends on your insurance (copay or coinsurance), your pharmacy and any discounts, and pharmacies also charge for filling a prescription. Ask your pharmacist or your health plan what your price will be.

NADAC per unit for Spironolactone, by strength and form
Strength and formGeneric or brandPharmacies pay
spironolactone 100 mg
tablet
Generic $0.1640 per tablet
spironolactone 100 mg
tablet, coated
Generic $0.1640 per tablet
spironolactone 100 mg
tablet, film coated
Generic $0.1640 per tablet
spironolactone 25 mg
tablet
Generic $0.0426 per tablet
spironolactone 25 mg
tablet, coated
Generic $0.0426 per tablet
spironolactone 25 mg
tablet, film coated
Generic $0.0426 per tablet
spironolactone 25 mg/5 mL
suspension
Generic $1.81–$1.89 per mL
6 packages, lowest to highest
spironolactone 25 mg/5 mL
suspension
Brand: CaroSpir $3.45 per mL
spironolactone 50 mg
tablet
Generic $0.0833 per tablet
spironolactone 50 mg
tablet, coated
Generic $0.0833 per tablet
spironolactone 50 mg
tablet, film coated
Generic $0.0833 per tablet

NADAC list of November 4, 2026; these prices took effect between September 23, 2026 and October 21, 2026. Shown only where a package’s NDC code matches the NADAC list exactly, and only for that exact strength and form: nothing is averaged across strengths. Strengths and forms not listed here have no NADAC price.

Source: NADAC (National Average Drug Acquisition Cost) 2026, data.medicaid.gov (CMS) →

Companies that list this medicine

Labelers in the FDA NDC Directory: the company named on the package (maker or distributor), with the number of prescription products.

FDA approval history

  • NDA: New Drug Application: how a new (usually brand-name) medicine is approved.
  • ANDA: Abbreviated New Drug Application: how a generic version is approved.
Brand and biologic applications
ApplicationSponsorApprovedLater changes approved
NDA012151
ALDACTONE
PfizerJanuary 21, 1960 41, latest November 14, 2025
2025: Labeling · 2022: Labeling · 2020: Labeling
NDA209478
CAROSPIR
Cmp Dev LLCAugust 4, 2017 3, latest August 24, 2023
2023: Labeling · 2021: Manufacturing (CMC) · 2021: Labeling

Generic approvals (12)

Shortage status

To be discontinued · updated December 10, 2025 · first posted December 10, 2025

ProductAldactone, Tablet, 25 mg (NDC 0025-1001-31)
CompanyPfizer Inc.

Ask your pharmacist whether your product is affected and what the options are.

FDA Drug Shortages database →

Recalls

From FDA enforcement reports, matched by the product’s NDC code. A recall usually covers specific lots only: check the lot number on your package and ask your pharmacist. Do not stop a medicine on your own.

  1. August 5, 2025 · Class II · Ongoing · D-0574-2025

    Presence of foreign substance: identified as aluminum.

    Spironolactone Tablets, USP, 25 mg, 100-count bottle, Rx only, Mfg. by: Frontida BioPharm, Inc., 1100 Orthodox St, Philadelphia, PA 19124, Dist. by: Sun Pharmaceutical Industries, Inc., Cranbury, NJ 08512, NDC 53489-143- — SUN PHARMACEUTICAL INDUSTRIES INC

  2. September 4, 2013 · Class II · Terminated · D-014-2014

    Marketed without an Approved NDA/ANDA: This recall is being initiated because of changes to the dissolution profile in distributed lots resulting from a manufacturing site change. There is currently no approved application supporting the alternate manufacturing site.

    Aldactone (spironolactone) tablets, USP, 100 mg, 100-count bottles, Rx only, Distributed by G.D. Searle, Division of Pfizer Inc, NY, NY 10017, NDC 0025-1031-31 — Pfizer Us Pharmaceutical Group

What do the recall classes mean?

Class I: The most serious type: there is a reasonable chance that using the product will cause serious health problems or death.
Class II: Using the product may cause temporary or medically reversible health problems, or the chance of serious problems is remote.
Class III: Using the product is not likely to cause health problems (for example a labeling or packaging issue).

Official identifiers

RxCUI (RxNorm)104232, 198222, 198223, 200817, 200820, 200825, 313096
SPL set ID of the quoted label0fed2822-3a03-4b64-9857-c682fcd462bc
FDA labels (SPL)122
FDA applicationsNDA012151, NDA209478, 12 ANDA
Active ingredients (FDA)SPIRONOLACTONE

Sources

  1. FDA-approved label on DailyMed (National Library of Medicine) — Aldactone, Pfizer Laboratories Div Pfizer Inc, effective November 28, 2025; via openFDA, FDA data exported October 30, 2026, retrieved October 31, 2026
  2. NDC Directory (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  3. Drugs@FDA (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  4. Drug recall enforcement reports (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 27, 2026, retrieved October 31, 2026
  5. Drug shortages (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026

openFDA data is provided by the FDA as is; it may be incomplete. Always rely on the label that comes with your medicine. FDA Enforcement Report search →

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