AbstractSuppression of the Renin-Angiotensin-Aldosterone system (RAAS) is an established intervention in the management of cardiovascular disease. Large, randomized controlled trials have provided a sound evidence base for the use of mineralocorticoid receptor antagonists to block the end product of the RAAS in the treatment of heart failure. However, the place for mineralocorticoid blockade in the treatment of hypertension is less well defined and lacking a strong evidence base. The main indication for the use of this strategy in hypertension is as a third line agent in the treatment of refractory hypertension. The most widely used mineralocorticoid receptor antagonist, spironolactone, is associated with dose related sexual side effects, limiting its use in clinical practice. Eplerenone, the selective mineralocorticoid receptor antagonist, is a promising cardiovascular drug licensed for the treatment of heart failure in Europe and heart failure and hypertension in the USA. It effectively blocks the mineralocorticoid receptor without the unpleasant sexual side effect profile of spironolactone. We review the use of eplerenone, a selective mineralocorticoid receptor antagonist in the treatment of hypertension; discuss its mechanism of action, safety profile as well as its current place in therapy.

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