progestational and antiandrogenic adverse effects due to. Spironolactone information from Drugs.com, includes Adult friend Spironolactone Ty the Tasmanian Tiger 2: side effects, interactions and indications. Correspondence from The New England Journal of Medicine -- Spironolactone and ACE Inhibition in Chronic

Renal Failure. The diuretic spironolactone can cause dangerous hyperkalaemia in patients who are also taking angiotensin converting enzyme (ACE) inhibitors, another drug. A pilot study had previously shown that the higher the dosage of spironolactone

(up to 24% with 75 mg a day) the higher the risk of hyperkalaemia.2 Standard. The antiandrogen effects of spironolactone have been shown to cause feminization