Potassium-sparing diuretics congestive heart failure

Potassium-sparing diuretics include amiloride (Midamor) and triamterene (Dyrenium). They are used in the treatment of cirrhosis and congestive heart failure. They may be used in conjunction with thiazide diuretics to offset the potassium loss associated with those medications. 

Hypokalemia should be treated in heart failure, because either hypokalemia or heart failure can predispose individuals to experience serious arrhythmias. Therefore, potassium-sparing diuretics are sometimes used in the treatment of congestive heart failure. 

Diuretics are used to increase the volume of urine excreted by the kidneys. They are effective in the treatment of edema associated with congestive heart failure. The thiazide diuretics (e.g., hydrochlorothiazide) have antihypertensive activity and are used to control blood pressure either alone or in combination with other antihypertensive agents. Spironolactone (an aldosterone antagonist) and amiloride are potassium-sparing diuretics. 

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