Cyproterone Acetate and Ethinyl Estradiol belong to the class of drugs known as steroidal antiandrogens and estrogen. Cyproterone Acetate functions by blocking the overproduction of androgen (a male hormone) in the ovaries and lessening acne and unwanted facial hair growth. On the other hand, Ethinyl Estradiol works as an enhancer. It can also solve anti-androgen issues in males and also work against prostate cancer.