Efficacy of Chinese patent medicine Tian Gui Capsule in patients with polycystic ovary syndrome: a randomized controlled trial.

Background: Polycystic ovary syndrome (PCOS) is a complex hormonal disorder and one of the most common reproductive endocrinology abnormalities in women. Recently, many studies have been conducted assessing Chinese herbal medicine as an alternative treatment for women with PCOS, it is, therefore, worthwhile to analyze and observe the curative effects of traditional Chinese medicine treatment in PCOS.

Objective: To evaluate the efficacy of the Chinese patent medicine Tian Gui Capsule, in women with PCOS and compare its effects with metformin and ethinyl estradiol plus cyproterone acetate (Diane-35).