research Effectiveness of Low-Dose Ethinylestradiol/Cyproterone Acetate and Ethinylestradiol/Desogestrel with and without Metformin on Hirsutism in Polycystic Ovary Syndrome: A Randomized, Double-Blind, Triple-Dummy Study
Both oral contraceptives reduced hirsutism in PCOS patients, but adding metformin showed no extra benefit.