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Does Spironolactone Interact with Mitotane?

Spironolactone and Mitotane have a contraindicated drug interaction according to U.S. FDA drug labeling data. Avoid concomitant use of spironolactone and mitotane. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.

Severity
Contraindicated
Spironolactone Class
Aldosterone Antagonist
Mitotane Class
Cytochrome P450 3A4 Inducers
Management
Do not take together
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Spironolactone and your doctor is considering prescribing Mitotane (or vice versa), make sure to:

  • Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
  • Ask whether the benefits of combining these medications outweigh the risks for your specific situation
  • Ask what symptoms to watch for that would indicate the interaction is causing problems
  • Ask about alternative medications that do not interact with your current regimen
  • Ask how frequently you should be monitored while these are co-prescribed
  • Never stop or change either medication without first consulting your healthcare provider
💊 Spironolactone(Aldactone)+💊 Mitotane(Lysodren)

Severity & Interaction Details

⛔
contraindicated
Avoid this combination
FDA labeling lists this pair as contraindicated. The risk outweighs the benefit in nearly all cases.
Severity scale
MinorContra
On record
Yes
Drug A class
Aldosterone Antagonist
Drug B class
Cytochrome P450 3A4 Inducers
Source
NLP:spironolactone

What this means in plain English

Avoid concomitant use of spironolactone and mitotane.

About Spironolactone and Mitotane

Spironolactone is an Aldosterone Antagonist, while Mitotane is a Cytochrome P450 3A4 Inducers. You may recognize them by the brand names Aldactone and Lysodren. Both medications are taken by mouth. Both Spironolactone and Mitotane carry an FDA boxed warning — the agency's most serious safety designation.

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Data integrity: Every interaction shown is extracted directly from official U.S. FDA drug labeling via openFDA and the U.S. National Library of Medicine (NIH) — no interactions are invented, inferred, or manually edited. Maintained by CheckDrugInteractions.com. See our methodology or report a correction at support@checkdruginteractions.com.

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine, supplemented with a small number of well-established interactions from curated clinical references. For informational purposes only. Always consult your pharmacist or physician.