Aldactone, which is spironolactone - is a competitive antagonist of aldosteron. In disteel kidney tubules increases removal of sodium and water, reduces - potassium. Lowers arterial pressure. It is prescribed at hyperaldosteronism, diagnostics of hyperaldosteronism, adenoma of adrenal glands, producing aldosterone; edema syndrome at chronic heart failure, cirrhosis, nephrotic syndrome, nephropathy of pregnant women; arterial hypertension, hypokalaemia, as additional medicine at malignant hypertension, hypokalaemia, prevention of hypokalaemia at patients with cardiac glycoside.