Aldactone (spironolactone) prescription available online 

If you are suffering from high blood pressure, low potassium levels, or congestive heart failure, Aldactone (spironolactone) can help. Get a new prescription or refill of Aldactone from a board-certified doctor online.*

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Controls high blood pressure effectively

Treats fluid retention and edema

FDA-approved for edema, heart failure, and more

*Prescriptions are provided at the doctor’s discretion. Learn more about our controlled substances policy and how you can save up to 80% with our prescription discount card.

About Aldactone (spironolactone)

Aldactone is a drug used in the treatment of hypertension, low potassium levels, and cardiovascular disease. Aldactone contains potassium that maintains your body's normal potassium level and prevents your body from absorbing too much salt.

It belongs to the potassium-sparing diuretics and Aldosterone-receptor antagonists drug classes. It is available under the generic, spironolactone. Aldactone is available only by prescription. It is available under different brand names, including CaroSpir. 

Aldactone can be used to treat edema and swelling problems. It is also used to control the level of aldosterone in your body. It is generally referred to as a water pill.

Aldactone is available in capsule form and oral suspension form.

It's always important to follow the specific instructions on your prescription, as they can vary based on the formulation and dosage you are prescribed.

If you are prescribed spironolactone, be sure to complete the full course of the diuretic unless your doctor specifically tells you to stop. Aldactone may not fully treat your high blood pressure, kidney problems, or heart problems if you don't complete your prescription.

Aldactone uses

There are a few FDA-approved uses for Aldactone, but it may also be used off-label to treat other conditions. Your online medical professional may prescribe it for any of the following common reasons. It’s also possible that your health care provider may prescribe it for other reasons not listed here. If you have questions about why a medication is prescribed, ask your online doctor or pharmacist.

  • Hyperaldosteronism

    Aldactone is an FDA-approved drug used to treat hyperaldosteronism, a condition which the body produces too much aldosterone.

  • High blood pressure

    Aldactone is also prescribed to treat high blood pressure. Lowering blood pressure can reduce the risk of strokes.

  • Heart problems

    The FDA has approved the use of Aldactone for congestive heart failure.

  • Edema

    Spironolactone is FDA-approved to treat edema. If decreasing dietary fluid and sodium intake has been insufficient in treating edema, spironolactone can help.

  • Acne

    The FDA has not approved Aldactone for use to treat hormonal acne, although it may help treat acne. Your doctor may prescribe spironolactone off-label as part of your acne treatment plan.

Aldactone side effects

The side effects associated with taking Aldactone are typically mild to moderate. There can be multiple side effects of this drug. A drug may have certain unintended consequences in addition to its intended benefits. Always talk to your doctor if you have concerns about side effects. Common side effects include:

    • Unstable heartbeat

    • Little to no urination

    • Swollen breasts

    • Vomiting 

    • Muscle pain

    • Numbness 

    • Lightheadedness 

    • Difficulty in speech 

    • Headache 

    • Confusion 

    Less common side effects may include:

    • Diarrhea 

    • Fatigue 

    • Severe dizziness

    • Yellowing of eye 

    • Leg cramps

    • Muscle weakness

    • Severe allergic reaction

    You should call your doctor if you notice any of these side effects or if you develop any other new or concerning symptoms. Use of Aldactone in young children under age 12 is not advised because it can cause serious health issues. The FDA has not approved this for children.

How to take Aldactone

Your pharmacist will provide you with instructions on how to take your Aldactone prescription.

Be sure to read your prescription label and follow the instructions. Call your doctor or pharmacy if you have any questions.

Aldactone can come in different forms and doses, so be sure to follow the specific instructions on your prescription. Dosage instructions may include the following:

  • Adult dose for hyperaldosteronism: Actual dose is determined by your doctor. Average dose is between 100 mg to 400 mg.

  • Adult dose for hypertension: Actual dose is determined by your doctor. Dosage is typically between 50 and 100 mg per day, taken once or twice a day.

Talk to your doctor about drinking alcohol when taking Aldactone, as it may cause unintended effects.

What to avoid while taking Aldactone

Aldactone has various drug interactions. Don't change what you take without checking with your doctor or pharmacist. That includes other medications or supplements, as well as over-the-counter drugs. 


Certain pain relievers combined with spironolactone can lead to kidney harm and high blood pressure. Examples of such pain relievers may include:

  • Diclofenac

  • Ketorolac 

  • Ibuprofen 

  • Ketoprofen

  • Indomethacin 

Potassium medication

When combined with spironolactone, certain medications can cause excessive amounts of potassium in your body. Some examples may include:

  • Benazepril

  • Fosinopril 

  • Enalapril 

  • Captopril 

Cholesterol medication

Taking certain cholesterol medications with spironolactone can cause excessive amounts of potassium and acid in your body. Examples include: 

  • Cholestyramine 

 Ask your doctor or pharmacist if consuming alcohol while taking Aldactone is acceptable.

Medication alternatives to Aldactone (spironolactone)

If your healthcare provider prefers to put you on another treatment altogether, they may suggest a diuretic or ACE inhibitor. Here are some common doctor-recommended alternatives based on your health issue:

Aldactone prescription FAQs

  • What is spironolactone used for?

    Spironolactone treats patients' hypertension, heart, and low potassium problems.

  • How can I get a spironolactone prescription online?

    Spironolactone is only available by prescription, so you will need to see a board-certified doctor for a prescription. To get started, book a virtual appointment with one of our top rated board-certified doctors. After a qualifying evaluation, your prescription will be sent to your local pharmacy for pickup.

  • How much does Aldactone cost?

    Aldactone has an average wholesale price of approximately $107.77 for 30 25mg Capsules. This price may be lower or vary depending on your pharmacy and insurance coverage. You can also save up to 80% on prescriptions as a PlushCare member with our prescription discount card.

  • What does Aldactone do for PCOS?

    Aldactone can inhibit the activity of certain androgens that can cause PCOS problems.

  • Who should not take Aldactone?

    Pregnant females, children, and people who have allergies to Aldactone should consult a doctor before using it. Before taking Aldactone, always tell your doctor about all your medical history or underlying disease including heart disease, kidney disease, or blood clots.

  • Can I take Aldactone every day?

    Aldactone should be taken according to the physician's advice as the dose can be different for different patients.

  • Is Aldactone a steroid? 

    Aldactone is an anabolic steroid that inhibits the activity of certain androgens.

  • What happens if I miss a dose of Aldactone?

    If you miss a dose of Aldactone, you should take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule.

  • What happens if I take too much Aldactone?

    You may suffer from vomiting, dizziness and headaches. Consult your doctor for medical advice if you have overdosed as soon as possible.

3 simple steps to request your Aldactone prescription today 

Step 1

Book an Aldactone prescription request appointment.

Book a same day appointment from anywhere.

Step 2

Talk to your medical provider regarding your Aldactone prescription.

Visit with a doctor on your smartphone or computer.

Step 3

Pick up your Aldactone prescription.

We can send prescriptions to any local pharmacy.

Aldactone prescription pricing details

How pricing works

To get a new or refill on your Aldactone prescription, join our monthly membership and get discounted visits.

Paying with insurance



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30 days of free membership

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  • Unlimited messages with your Care Team

  • Prescription discount card to save up to 80%

  • Exclusive discounts on lab tests

  • Free memberships for your family

  • Cancel anytime

Visit price with insurance

Often the same as an office visit. Most patients with in-network insurance pay $30 or less!

  • We accept these insurance plans and many more:

    • Humana
    • Aetna
    • Cigna

Paying without insurance



First month free



30 days of free membership

  • Same-day appointments 7 days a week

  • Unlimited messages with your Care Team

  • Prescription discount card to save up to 80%

  • Exclusive discounts on lab tests

  • Free memberships for your family

  • Cancel anytime

Visit price without insurance

Initial visits are $129.

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If we're unable to treat you, we'll provide a full refund.


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PlushCare content is reviewed by MDs, PhDs, NPs, nutritionists, and other healthcare professionals. Learn more about our editorial standards and meet the medical team. The PlushCare site or any linked materials are not intended and should not be construed as medical advice, nor is the information a substitute for professional medical expertise or treatment.