How effective is spironolactone treatment for hirsutism?

This medicine reduces the effect of androgens on hair follicles. It may make new hair finer, slower-growing, or less noticeable, while hair that has already become coarse may still need removal. It is generally considered a longer-term approach rather than a quick fix, and visible change may take several months. Results can be more useful when the underlying hormonal pattern is assessed alongside treatment.

A dermatologist or other qualified clinician should review your symptoms, medicines, blood pressure, kidney health, and pregnancy plans before prescribing it. Take it exactly as directed and attend any requested monitoring. Do not change the dose because hair growth seems unchanged early on. Shaving, waxing, or laser hair reduction may be discussed for existing hair. Tell the clinician about dizziness, breast tenderness, menstrual changes, or medicines and supplements that affect potassium or fluid balance.

Seek prompt medical advice for fainting, marked weakness, a fast or irregular heartbeat, severe vomiting, or a serious allergic reaction. Arrange an assessment if hair growth appears suddenly, progresses quickly, or comes with a deeper voice, increased muscle bulk, or other unexpected androgen-related changes, because the cause may need investigation.

Ask whether your hair pattern suggests an androgen-related cause, when you should expect to review progress, which monitoring is appropriate, and whether spironolactone is compatible with your contraception, pregnancy plans, and current medicines.