Spironolactone works by blocking the actions of a hormone in the body called aldosterone. This hormone is produced by glands found above the kidneys called the adrenal glands.
Aldosterone acts in the kidneys, where it is involved in controlling the balance of salt and water in the body
How does spironolactone help with PCOS?
Androgen such as testosterone are responsible for hair growth on the face, chest, and stomach that some young women with PCOS have. Androgen’s can also cause acne.
Spironolactone works by lowering the level of androgens, which lessens hair growth and improves acne.