Effect of cyproterone acetate-ethinyl oestradiol treatment on adrenal function in hirsute women.

Pituitary adrenal suppression has been assessed in twenty-two patients receiving cyproterone acetate (100 mg) and ethinyl oestradiol (30 micrograms) for the treatment of hirsutism. Cortisol responsiveness to ACTH and to insulin induced hypoglycaemia, and diurnal variations of plasma cortisol levels were measured before and after 6 months of treatment. There was no evidence that adrenal suppression is a significant problem in this group of patients.