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Home / acne / Medications / spironolactone dose for acne

Spironolactone dose for acne

Spironolactone is used off-label for the treatment of acne for women, but what is the right dose? This article contains answers to common questions about spironolactone for hormonal acne.

Dermatologist  Dr. Patrick Mahar
Medically reviewed by:
Dr. Patrick Mahar
Dermatologist

Table of Content:
What is spironolactone? | Advantages | How does it work? | Side-effects | Where to get a prescription? | Formulations | Brands | Highest and lowest dose for acne | Missing a dose | Taking a double dose by mistake | Can you use it long term? | Common medicine interactions | Interaction with alcohol | Interaction with ibuprofen | Interaction with Adderall | Interaction with magnesium | Interaction with lithium | Interaction with Zoloft

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The information presented in this article is based on scientific research and the professional advice of our Content Medical Reviewers, who are experts in the field of Dermatology. How we write our content →

What is spironolactone?

Spironolactone is a potassium-sparing diuretic (water pill) initially developed to treat conditions such as heart failure and high blood pressure1 but it is nowadays used off-label for various medical purposes such as: 

  • Hormonal acne in women
  • Excessive hair growth (hirsutism)
  • Excessive production of aldosterone
  • Abnormal accumulation of fluid in body tissues, leading to swelling or edema
  • Very low levels of potassium (hypokalemia)2
  • Hair loss in women3 

It is important to note that spironolactone is not appropriate for men or women who are pregnant or breastfeeding women unless there are specific circumstances, and it is prescribed to you by your doctor.

What is the recommended dose of spironolactone for acne?

According to Dr. Patrick Mahar, dermatologist, the typical spironolactone dose recommended for acne patients varies from 50 to 200 mg per day. 

What is the maximum/highest dose of spironolactone for acne?

The maximum recommended dose of spironolactone for acne is 200 mg per day. 

What is the lowest dose of spironolactone for acne?

The lowest dose of spironolactone for acne is usually 50 mg per day.

What is the spironolactone starting dose?

The starting dose of spironolactone for acne is usually 50 mg and can be slowly increased up to 200 mg if the patient continues to have acne breakouts.

What happens if I miss a dose of spironolactone for acne?

Dr. Mahar recommends that If you miss a dose of spironolactone, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and do not take a double dose.

What happens if I take a double dose of spironolactone?

Dr. Mahar says that in most cases, if you accidentally take an extra dose of spironolactone, you are likely to be alright. However, there may be a small chance that your blood pressure might drop too low. It is important to get in touch with your doctor if you start feeling unwell and if you have kidney or liver disease.

Your doctor will probably ask you to check your blood pressure at home and keep an eye out for symptoms such as nausea, dizziness, or drowsiness throughout the day. 

If you experience these symptoms, call your doctor.

How to get spironolactone for acne?

You can get a spironolactone prescription for hair loss by having a photo consultation with an virtual dermatology provider. This only costs $59 and you will get your prescription (if medically adequate for you) in 1-2 working days.

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Advantages of using oral spironolactone for acne

Traditional acne prescription medication such as oral antibiotics and isotretinoin are usually recommended for three to six months, respectively. The long-term use of antibiotics can contribute to bacterial resistance and the use of isotretinoin can cause multiple side-effects, some of which can be serious. 

Oral and topical spironolactone have the advantage that may be used long term. Studies have also shown spironolactone is effective at treating acne with improvement ranging from a 50% to 100% reduction of acne breakouts4.

Kelly Nielsen

Testimonial: Kelly’s Story

Kelly struggled with skin issues for as long as she can remember. For years, she relied on birth control pills to manage her hormonal acne, but eventually, she had to stop.

How does spironolactone work for acne?

Spironolactone (Aldactone) is a diuretic (water pill) used to treat female acne as hormone therapy by targeting the hormonal aspect of the disease5.

Spironolactone slows down the body’s production of skin oil (sebum) by preventing a hormone called dihydrotestosterone (DHT) from attaching to specific receptors. 

Spironolactone does not show results as quickly as other treatment options6 7 . 

Potential side effects of oral spironolactone

Spironolactone may cause more side effects than the ones mentioned on this list, this is just a summary of the most common side effects.

  • Increase in urination
  • Headaches
  • Frequent bowel movements
  • Menstrual disorders
  • Breast tenderness
  • Fatigue
  • Dizziness
  • Low blood pressure
  • Elevated blood-potassium
  • Decreased sex drive8

Spironolactone formulations

Spironolactone comes in three different formulations: tablets, suspension and topical.

  • Spironolactone (Aldactone) tablets are available in 25mg, 50mg, 100mg
  • Carospir suspension 25mg/5ml

Spironolactone brands

  • Aldactone
  • Carospir

When to take spironolactone?

Dr. Mahar says that you will usually take spironolactone in the morning. If you have been prescribed by your doctor a higher dose, you might need to take it twice a day. If this is the case try to make sure you take the second dose no later than 4:00 pm. 

If you take spironolactone at night, you may need to go to the bathroom a few times during the night. 

How long does spironolactone take to work for acne?

Spironolactone is not as fast working as other prescription medications, so depending on your skin, you should see improvements after 8 to 12 weeks.

Studies show that many women experience high success rates and that improvement ranges from a 50% to 100% reduction in their face and body acne after week 12 .

Can you use spironolactone long term?

Other acne treatments for acne such as minocycline, doxycycline, Seysara and isotretinoin, should not be used long-term. 

Dr. Mahar says that you can safely take spironolactone long term, together with an effective contraception method. Your healthcare provider will probably suggest having occasional blood tests to make sure your potassium levels are properly balanced, and your blood pressure is not too low.

Can you use spironolactone while trying to conceive?

Spironolactone should not be taken while you are pregnant, trying to conceive or breastfeeding as it may affect the baby’s health.

Common spironolactone medicine interactions

Spironolactone has over 100 drug interactions. Please tell your online dermatologist if you are taking any medicines or supplements.

Alcohol and spironolactone

If you’re using spironolactone for acne, a mild alcohol consumption is generally permissible. Nevertheless, follow the suggested recommendations of having a maximum of 2 alcohol units daily and 14 units per week. 

As a guidance, a regular 175ml glass of wine constitutes 2 units, while a pint of beer usually contains 2 to 3 units of alcohol.

Ibuprofen and spironolactone

Spironolactone has many drug interactions which include common painkillers such as ibuprofen, diclofenac, naproxen or aspirin. You should not take these medications unless instructed by your doctor to do so. 

Spironolactone and Adderall

Adderall is a stimulant commonly used to treat attention deficit hyperactivity disorder (ADHD) and It can increase heart rate and blood pressure. On the other hand, spironolactone lowers blood pressure. Taking these medications together could potentially lead to unpredictable changes in blood pressure, which might be harmful. You should let your doctor know if you are taking Adderall before they prescribe oral spironolactone.  

Spironolactone and magnesium

Both magnesium and spironolactone can affect the balance of electrolytes in your body, particularly potassium . If you have been prescribed spironolactone it may be best to skip the magnesium supplements at least while you are taking the medication.

Spironolactone and lithium

Spironolactone and lithium may have similar effects on the body when it comes to inhibiting a hormone called aldosterone, therefore taking them both at the same time is not recommended .

Spironolactone and Zoloft (sertraline) 

Spironolactone and Zoloft (sertraline) can both lower blood pressure, therefore they should not be taken at the same time unless advised for your doctor . 

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Medications for acne

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  • Doxycycline Hyclate vs Monohydrate

Article References:
https://www.mayoclinic.org/drugs-supplements/spironolactone-oral-route/side-effects/drg-20071534?p=1
https://reference.medscape.com/drug/carospir-aldactone-spironolactone-342407
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10010138/
https://www.dermatologytimes.com/view/spironolactone-safe-and-effective-adult-female-acne
https://www.ncbi.nlm.nih.gov/books/NBK554421/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5440451/
https://my.clevelandclinic.org/health/drugs/19755-spironolactone-tablets
https://www.dermatologytimes.com/view/spironolactone-safe-and-effective-adult-female-acne
https://www.bmj.com/content/381/bmj-2022-074349
https://www.aad.org/public/diseases/acne/derm-treat/hormonal-therapy
https://www.mayoclinic.org/drugs-supplements/spironolactone-oral-route/side-effects/drg-20071534?p=1
https://www.nhs.uk/medicines/spironolactone/common-questions-about-spironolactone/
https://www.ncbi.nlm.nih.gov/books/NBK556103/
https://my.clevelandclinic.org/health/diseases/23264-hypomagnesemia
https://pubmed.ncbi.nlm.nih.gov/670960/
https://pubmed.ncbi.nlm.nih.gov/29042710/


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