Long-Lasting Effects of Spironolactone After its Withdrawal in Patients with Hyperandrogenic Skin Disorders

Objective: Hyperandrogenic skin disorders, such as hirsutism, acne and alopecia, affect approximately 10-20% of women of reproductive age, reducing quality of life and causing psychological impairment. Spironolactone is a commonly used antiandrogen, especially in women who are not sexually active or have contraindications to hormonal contraceptives. The aim of this study was to evaluate the effects of spironolactone, especially after its withdrawal, in patients with hyperandrogenic skin disorders. Methods: Retrospective analysis of 63 women with hyperandrogenic skin symptoms due to polycystic ovary syndrome (PCOS), treated with spironolactone for at least 6 months as first-line treatment. Results: After a mean time of treatment of 25.7 months, all patients reported a significant improvement in hyperandrogenic skin disorders; only 5 patients were dissatisfied and required the addition of an oral contraceptive. The therapy was well tolerated and the most frequent side-effect was intermestrual bleeding in 68.2% of cases, affecting mainly classic PCOS phenotype. Thirthy-eight patients showed prolonged effects 33.7 months after spironolactone withdrawal, whereas 20 relapsed 17.5 months after discontinuation. No significant difference in clinical and biochemical parameters was found between these two groups both at baseline and after spironolactone treatment. Ovulatory PCOS patients were treated for a shorter time and reported earlier relapse than classic PCOS patients. Conclusion: Spironolactone is an effective and safe treatment for hyperandrogenic skin disorders, showing long-lasting effects even several months after its discontinuation.