In this open prospective study , @ women with hirsutism due to polycystic ovary syndrome ( PCOS ) were randomly assigned to the following treatment protocols : Group A ( n = @ ) : spironolactone @ mg-norgestimate @ mcg-ethinyl estradiol @ microg ; Group B ( n = @ ) : cyproterone acetate @ mg-ethinyl estradiol @ microg ; Group C ( n = @ ) : norgestimate @ microg-ethinyl estradiol @ microg .