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Spironolactone can cause hyperkalemia, or high blood potassium levels. [111] Rarely, this can be fatal. [111] Of people with heart disease prescribed typical dosages of spironolactone, 10 to 15% develop some degree of hyperkalemia, and 6% develop severe hyperkalemia. [111] At a higher dosage, a rate of hyperkalemia of 24% has been observed. [119]
[1] [2] Hyperkalemia can cause an abnormal heart rhythm which can result in cardiac arrest and death. [1] [3] Common causes of hyperkalemia include kidney failure, hypoaldosteronism, and rhabdomyolysis. [1] A number of medications can also cause high blood potassium including spironolactone, NSAIDs, and angiotensin converting enzyme inhibitors. [1]
The pharmacodynamics of spironolactone are characterized by high antimineralocorticoid activity, moderate antiandrogenic activity, and weak steroidogenesis inhibition. In addition, spironolactone has sometimes been found to increase estradiol and cortisol levels and hence could have slight indirect estrogenic and glucocorticoid effects.
Potassium-sparing diuretics or antikaliuretics [1] refer to drugs that cause diuresis without causing potassium loss in the urine. [2] They are typically used as an adjunct in management of hypertension, cirrhosis, and congestive heart failure. [3] The steroidal aldosterone antagonists can also be used for treatment of primary hyperaldosteronism.
The same year, 1959, spironolactone was launched as a potassium-sparing diuretic. It became clear years later that aldosterone antagonists inhibit a specific receptor protein. This protein has high affinity for aldosterone but also for cortisol in humans and corticosterone in mice and rats. For this reason, aldosterone antagonists were called ...
How to maintain optimal levels of potassium and magnesium Now that we understand the importance of these electrolytes for cognitive health, let's explore how to ensure you're getting enough of them.
Treatment includes removing the causative agent (such as licorice), a high-potassium, low-sodium diet (for primary) and high-sodium diet (for secondary), spironolactone and eplerenone, potassium-sparing diuretics that act as aldosterone antagonists, and surgery, depending on the cause. [11] For adrenal adenoma, sometimes surgery is performed.
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