Skip to content

    Heart Failure Health Center

    Font Size
    A
    A
    A

    Treating Heart Failure With Aldactone

    Aldactone, an aldosterone inhibitor, is a potassium-sparing diuretic. This medication is used to treat patients with heart failure when systolic dysfunction is present.

    Aldactone is usually prescribed to prevent heart failure symptoms from becoming worse. Aldactone protects the heart by blocking a certain chemical (aldosterone) in the body that causes salt and fluid build-up.

    Recommended Related to Heart Failure

    Understanding Heart Failure -- the Basics

    Heart failure is a condition in which the heart can't pump blood effectively to the lungs or the rest of the body. This can be because the person has developed a weakened heart muscle or because the heart muscle has thickened or stiffened, making it difficult to fill the heart and backing up blood into the lungs. With heart failure, the weakened heart pumps less blood than usual, causing the kidneys and adrenal glands to produce chemicals that help the body to hold onto salt and water. In...

    Read the Understanding Heart Failure -- the Basics article > >

    When receiving aldactone, you may be given a low dose that does not provide enough diuretic effects by itself. Your doctor may prescribe another type of diuretic in addition to aldactone.

    How Do I Take Aldactone?

    Follow the label directions on how often to take this drug. If you are taking a single dose a day, you may wish to take it in the morning with your breakfast or right after eating your breakfast. If you are taking more than one dose a day, consider taking the last dose no later than 4 p.m so that you are not waking up late at night to urinate.

    The number of doses you take each day, the time allowed between doses, and how long you need to take the medication will depend on your condition.

    What Are the Side Effects of Aldactone?

    Side effects you may experience with Aldactone include:

    • Extreme tiredness: This side effect may be strongest when you first start taking Aldactone. It should decrease as your body adjusts to the drug. Call your doctor if this symptom persists.
    • Increased urination: This is normal and may last for up to six hours after a dose.
    • Abnormal enlargement of one or both breasts in men: This may be associated with breast pain. Contact your doctor if this symptom persists or is severe.
    • Upset stomach: Take this drug with meals or milk to reduce this symptom. Contact your doctor if this symptom persists or is severe.
    • Skin rash or itching: Stop taking the medication and call your doctor right away.
    • Shortness of breath: Call your doctor right away.
    • Confusion; irregular heartbeat; nervousness; numbness or tingling in the hands, feet, or lips: Contact your doctor right away.

    Today on WebMD

    Compressed heart
    Article
    Salt Shockers
    Slideshow
     
    Inside A Heart Attack
    Slideshow
    lowering blood pressure
    SLIDESHOW
     

    Mechanical Heart
    Article
    Omega 3 Overview Slideshow
    Slideshow
     
    Atrial Fibrillation Guide
    Slideshow
    Simple Steps to Lower Cholesterol
    Slideshow
     

    Compressed heart
    Article
    FAQ Heart Failure
    Article
     
    Cholesterol Confusion
    Health Check
    Resolved To Quit Smoking
    Slideshow
     

    WebMD Special Sections