Spironolactone has 54 known drug interactions based on U.S. FDA drug labeling data. Of these, 5 are contraindicated combinations that should be avoided entirely. 28 are classified as major interactions requiring close medical supervision. Notable interactions include combinations with Abiraterone, Mitotane, Potassium Chloride. Patients taking Spironolactone should inform their healthcare provider of all current medications — including over-the-counter drugs and supplements — to avoid potentially harmful combinations. Data sourced from OpenFDA and the NIH National Library of Medicine.
- Total
- 54
- Contraindicated
- 5
- Major
- 28
- Moderate
- 20
Contraindicated (5)
- Spironolactone + Abiraterone— Spironolactone binds to androgen receptor and may increase PSA levels in abiraterone-treated prostate cancer patients. C…
- Spironolactone + Mitotane— Avoid concomitant use of spironolactone and mitotane.
- Spironolactone + Potassium Chloride— Concomitant use can produce severe hyperkalemia. Avoid concomitant use.
- Spironolactone + Potassium Citrate— Concomitant administration can produce severe hyperkalemia and should be avoided.
- Spironolactone + Potassium Supplements— Concomitant administration can lead to severe hyperkalemia. Potassium supplementation should be discontinued in heart fa…
Major (28)
- Spironolactone + Aldosterone— Angiotensin II antagonists, aldosterone blockers, heparin, low molecular weight heparin, and other drugs known to cause …
- Spironolactone + Amlodipine And Benazepril Hydrochloride— Potassium-sparing diuretic can increase the risk of hyperkalemia. Frequent monitoring of serum potassium is recommended …
- Spironolactone + Angiotensin Ii— ARBs can increase serum potassium; concomitant use with spironolactone may lead to severe hyperkalemia. Check potassium …
- Spironolactone + Captopril And Hydrochlorothiazide— May cause significant increase in serum potassium. Should only be given for documented hypokalemia and with caution due …
- Spironolactone + Cholestyramine Light— Hyperkalemic metabolic acidosis has been reported with concomitant use of spironolactone and cholestyramine.
- Spironolactone + Digoxin— Spironolactone increases half-life of digoxin, resulting in increased serum levels and potential digitalis toxicity.
- Spironolactone + Enalapril— Potassium-sparing diuretic may lead to significant increases in serum potassium. Avoid in heart failure patients.
- Spironolactone + Enalapril Maleate— Potassium-sparing diuretic may lead to significant increases in serum potassium when used with enalapril.
- Spironolactone + Enalapril Maleate And Hydrochlorothiazide— Potassium-sparing diuretic; enalapril attenuates diuretic-induced potassium loss, increasing hyperkalemia risk.
- Spironolactone + Fosinopril— Potassium-sparing diuretic that can increase risk of hyperkalemia when used with fosinopril. Requires caution and freque…
- Spironolactone + Heparin— Heparin can increase serum potassium; concomitant use with spironolactone may lead to severe hyperkalemia.
- Spironolactone + Indomethacin— Combination with potassium-sparing diuretics has been associated with severe hyperkalemia and reduced diuretic effects.
- Spironolactone + Lisinopril— Potassium-sparing diuretic can increase risk of hyperkalemia when used with lisinopril; requires frequent monitoring of …
- Spironolactone + Lisinopril And Hydrochlorothiazide Tablets— Potassium-sparing diuretic may lead to significant hyperkalemia when used with lisinopril which attenuates potassium los…
- Spironolactone + Lithium— Spironolactone reduces renal clearance of lithium, increasing the risk of lithium toxicity. Monitor lithium levels perio…
- Spironolactone + Losartan Potassium— Concomitant use may lead to increases in serum potassium, which can be serious.
- Spironolactone + Low Molecular Weight Heparin— Low molecular weight heparin can increase serum potassium; concomitant use with spironolactone may lead to severe hyperk…
- Spironolactone + Mao Inhibitors— ACE inhibitors can increase serum potassium; concomitant use with spironolactone may lead to severe hyperkalemia. Check …
- Spironolactone + Olmesartan Medoxomil— Potassium-sparing diuretic may lead to increases in serum potassium. Monitoring of serum potassium is advisable.
- Spironolactone + Perindopril Erbumine— Risk of hyperkalemia. Perindopril may increase serum potassium by decreasing aldosterone production.
- Spironolactone + Potassium Chloride For Oral Solution— Concomitant use can produce severe hyperkalemia. Avoid concomitant use.
- Spironolactone + Ramipril— Potassium-sparing diuretic increases risk of hyperkalemia. Frequent monitoring of serum potassium recommended if concomi…
- Spironolactone + Sacubitril And Valsartan— May lead to increased serum potassium levels. Monitor potassium levels during concomitant use.
- Spironolactone + Sodium Chloride, Sodium Lactate, Potassium Chloride, Calcium Chloride And Dextrose Monohydrate— Increased risk of severe and potentially fatal hyperkalemia when potassium chloride solution is administered.
- Spironolactone + Trandolapril— Potassium-sparing diuretic increases risk of hyperkalemia when used with trandolapril; requires caution and appropriate …
- Spironolactone + Trimethoprim— Trimethoprim can increase serum potassium; concomitant use with spironolactone may lead to severe hyperkalemia.
- Spironolactone + Valsartan— Potassium-sparing diuretic may lead to increases in serum potassium and in heart failure patients, increases in serum cr…
- Spironolactone + Valsartan And Hydrochlorothiazide— Potassium-sparing diuretic may lead to increases in serum potassium and in heart failure patients to increases in serum …
Moderate (20)
- Spironolactone + Acetylsalicylic Acid— ASA may reduce the efficacy of spironolactone. May require higher maintenance doses; monitor patient closely.
- Spironolactone + Alcohol— Potentiation of orthostatic hypotension may occur.
- Spironolactone + Amlodipine And Valsartan— Potassium-sparing diuretic that may increase serum potassium when combined with valsartan. Monitor serum potassium level…
- Spironolactone + Barbiturates— Potentiation of orthostatic hypotension may occur.
- Spironolactone + Benazepril Hydrochloride— Increased risk of hyperkalemia. Monitor serum potassium frequently during concomitant use.
- Spironolactone + Corticosteroids— Intensified electrolyte depletion, particularly hypokalemia, may occur.
- Spironolactone + Cosyntropin— May falsely elevate plasma cortisol levels, affecting test accuracy. Should be stopped on day of COSYNTROPIN testing.
- Spironolactone + Enalapril Maleate Oral Solution— Potassium-sparing diuretic may lead to significant increases in serum potassium when combined with enalapril. Avoid in h…
- Spironolactone + Enalaprilat— Potassium-sparing diuretic may lead to significant increases in serum potassium when used concomitantly with enalaprilat…
- Spironolactone + Fosinopril Sodium— Potassium-sparing diuretic that can increase risk of hyperkalemia when combined with fosinopril. Serum potassium should …
- Spironolactone + Fosinopril Sodium And Hydrochlorothiazide— Potassium-sparing diuretic may increase risk of hyperkalemia when used with fosinopril sodium and hydrochlorothiazide; r…
- Spironolactone + Leucine, Phenylalanine, Lysine, Methionine, Isoleucine, Valine, Histidine, Threonine, Tryptophan, Alanine, Glycine, Arginine, Proline, Serine, Tyrosine, Dibasic Potassium Phosphate, Magnesium Chloride, Sodium Chloride, Calcium Chloride, Dextrose— Potassium-sparing diuretic may increase risk of hyperkalemia when used with CLINIMIX E due to its potassium content; adm…
- Spironolactone + Moexipril Hydrochloride— Potassium-sparing diuretic may increase risk of hyperkalemia when used concomitantly with moexipril. Requires caution an…
- Spironolactone + Nonsteroidal Anti-Inflammatory Drugs (Nsaids)— NSAIDs may reduce diuretic, natriuretic, and antihypertensive effects of spironolactone. Monitor closely for desired diu…
- Spironolactone + Norepinephrine— Spironolactone reduces vascular responsiveness to norepinephrine; caution needed during anesthesia.
- Spironolactone + Nsaids— NSAIDs may reduce the diuretic, natriuretic, and antihypertensive effect of spironolactone. Monitor closely for desired …
- Spironolactone + Quinapril— Potassium-sparing diuretic may increase serum potassium when used with quinapril. Use with caution and monitor serum pot…
- Spironolactone + Repository Corticotropin— Intensified electrolyte depletion, particularly hypokalemia, may occur.
- Spironolactone + Trandolapril Tablets— Potassium-sparing diuretic that increases risk of hyperkalemia when used with ACE inhibitors. Use with caution and monit…
- Spironolactone + Tubocurarine— Possible increased responsiveness to the nondepolarizing muscle relaxant may result.