Oral Spironolactone

Spironolactone is a prescription tablet taken once daily. It blocks androgen receptors in the skin's oil (sebaceous) glands, which lowers the hormonal signal that tells those glands to overproduce sebum. Less oil means fewer clogged pores and less of the inflammation behind hormonal breakouts. Because it works internally rather than on the surface, it reaches every affected area at once — jawline, chin, neck, chest, and back. It is also a mild diuretic, which is why your clinician reviews your other medications and health history before prescribing it.

Spironolactone tablets are FDA-approved, but the approved uses are high blood pressure, heart failure, certain kinds of fluid retention, and primary hyperaldosteronism. Prescribing it for acne is an off-label use — the medication itself is approved, and the specific use is not. Off-label prescribing is common and legal, and in this case it is supported by decades of dermatology literature; the American Academy of Dermatology's 2024 acne guideline includes spironolactone among its recommended options. We state it plainly so you know exactly what you are taking.

Spironolactone is gradual, not immediate. In published studies, initial changes are typically noted around the three-month mark, with continued improvement over roughly the following three months. Your clinician will usually reassess after several months of consistent daily use before making a decision about the dose. Consistency matters more than anything else here — taking it daily is what allows the effect to build. Individual results vary.

Your clinician decides, based on your history, your acne pattern, and how you tolerate treatment. Most people start at a lower dose — often 25 mg or 50 mg once daily — and the dose is adjusted at follow-up if needed. Starting low and increasing gradually tends to reduce side effects such as lightheadedness and increased urination. Never change your dose on your own.

The most frequently reported effects are increased urination (spironolactone is a mild diuretic), irregular periods or spotting, breast tenderness or enlargement, lightheadedness on standing, fatigue, and headache. Most are dose-related and often ease as your body adjusts; a dose adjustment usually helps if they do not. Taking your tablet in the morning can reduce nighttime bathroom trips. Read the full Important Safety Information and tell your provider about anything that persists.

Spironolactone causes the body to retain potassium. In healthy young women with normal kidney function, meaningful increases are uncommon, and current dermatology guidance does not call for routine potassium monitoring in that group. Your clinician may order blood work if you are older, have kidney, liver, heart, or adrenal conditions or diabetes, or take a medication that also raises potassium — including ACE inhibitors, ARBs, potassium supplements, salt substitutes, regular NSAIDs, or trimethoprim/sulfamethoxazole. Always share your full medication list.

Yes — the two are commonly prescribed together. A combined oral contraceptive lowers androgen production while spironolactone blocks the receptor, so they address hormonal acne through complementary routes. The pill also reduces the menstrual irregularity and spotting that spironolactone can cause, and it provides the reliable contraception recommended during treatment. One note: pills containing drospirenone (such as Yaz, Yasmin, or Slynd) also have a potassium-sparing effect, so tell your provider if you take one.

No. Spironolactone should be avoided during pregnancy because of its potential effect on the sexual development of a male fetus. Clinicians generally recommend reliable contraception while taking it, and it should be stopped before trying to conceive. Tell your provider right away if you become pregnant or are planning to. Information on use while breastfeeding is limited, so discuss that with your provider as well.

It is prescribed off-label for this purpose in women, including excess hair growth related to PCOS. The same androgen blockade that reduces oil production also reduces the androgen signal at the hair follicle. Hair responds more slowly than skin, because change only shows as follicles enter a new growth cycle — professional guidelines suggest allowing at least six months before judging the result. Your clinician will tell you whether spironolactone fits your situation.

Usually, yes. Spironolactone addresses the hormonal driver from the inside while a topical retinoid such as tretinoin works on cell turnover and clogged pores at the surface, so the two are often combined. Share every product and prescription you use — including cleansers, retinoids, and antibiotics — so your clinician can build a routine that works together rather than one that irritates your skin.

Generally no. At the doses used for acne, spironolactone's androgen-blocking effect can cause breast tenderness and enlargement and reduced libido in men, so it is not a standard acne therapy for them. Men with persistent acne have other options — topical retinoids and other prescription treatments among them. Our clinicians can review what fits.

Spironolactone manages an ongoing hormonal driver rather than permanently changing it, so acne commonly returns after stopping. Many people stay on it long term — with no antibiotic involved, there is no resistance concern with continued use — while others taper off under clinician guidance once their skin has been stable for a while. Talk to your provider before stopping so you have a plan rather than a rebound.

Spironolactone ships as a 90-day supply — one tablet daily, three months at a time. That matches how the medication actually works: improvement builds gradually, and clinicians generally reassess after a few months of consistent daily use, so a 90-day supply carries you to that first real checkpoint without a refill in between. It also means fewer shipments to track and fewer chances to run out mid-treatment.