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Spironolactone (Acne) and Digoxin Interaction

Drug interaction information between Spironolactone (Acne) and Digoxin.

Spironolactone (Acne) and Digoxin have a documented minor interaction in FDA labeling.

FDA drug labeling documents a minor-severity interaction between Spironolactone (Acne) and Digoxin. Major interactions are generally avoided, moderate ones may need monitoring or a dose adjustment, and minor ones are usually low-risk. This page shows the documented mechanism and guidance. Label-documented interactions are not a complete safety review, so always confirm your own medications with a pharmacist or doctor. Educational information, not medical advice.

Drug A

Spironolactone (Acne)

Anti-Androgen

Drug B

Digoxin

Cardiac Glycoside

How They Interact

This drug can interfere with the lab tests used to measure digoxin, making it look like there is more medicine in your blood than there actually is.

What To Do

Your doctor may need to adjust how they monitor your digoxin levels to get an accurate reading.

FDA Label Information

• Digoxin: ALDACTONE can interfere with radioimmunologic assays of digoxin exposure ( 7.4 ). 7.4 Digoxin Spironolactone and its metabolites interfere with radioimmunoassays for digoxin and increase the apparent exposure to digoxin. It is unknown to what extent, if any, spironolactone may increase actual digoxin exposure.

Spironolactone (Acne) Also Interacts With

View all Spironolactone (Acne) interactions →

Frequently Asked Questions

Can I take Spironolactone (Acne) and Digoxin together?

This is a minor interaction. Your doctor may need to adjust how they monitor your digoxin levels to get an accurate reading.

How serious is the interaction between Spironolactone (Acne) and Digoxin?

This interaction is classified as "minor" severity by the FDA. Minor interactions are unlikely to cause significant problems but should still be mentioned to your healthcare provider.

Why do Spironolactone (Acne) and Digoxin interact?

This drug can interfere with the lab tests used to measure digoxin, making it look like there is more medicine in your blood than there actually is.

Understanding the Spironolactone (Acne) and Digoxin Interaction

FDA-approved prescribing information for these two drugs flags their combination as a minor-severity interaction. Spironolactone (Acne) belongs to the Anti-Androgen class and Digoxin belongs to the Cardiac Glycoside class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: This drug can interfere with the lab tests used to measure digoxin, making it look like there is more medicine in your blood than there actually is. Severity tiers matter: major flags generally advise avoidance, moderate flags often require monitoring or dose adjustment, and minor flags may only call for awareness.

Context around a specific patient determines real-world impact. Spironolactone (Acne) has 7 total documented interactions on file in this dataset, and Digoxin has 120. Each additional medication compounds the interaction surface, which is why pharmacists run full-profile checks rather than evaluating one pair at a time. FDA-derived guidance for this pair is: Your doctor may need to adjust how they monitor your digoxin levels to get an accurate reading. Timing of doses, renal and hepatic function, age, and other concurrent prescriptions all shape whether a labeled interaction matters clinically.

An interaction flag is not a verdict. A large share of labeled interactions are managed routinely in clinical practice, the fix may be as simple as spacing doses or adding a monitoring test. Others require the prescriber to choose a different medication entirely. This page surfaces FDA-sourced labeling and openFDA data for educational purposes only; it is not medical advice and cannot account for your full clinical picture. Never start, stop, or adjust either Spironolactone (Acne) or Digoxin based on a web page, speak with your prescriber or pharmacist before making any change.

Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. Always consult your healthcare provider about drug interactions.