Aromasin (and other aromatase inhibitors)
Doctors give anti-estrogens in cancer patients with tumors that grow faster by estradiol.
Chemical athletes use anti-estrogens because they want to prevent their synthetic hormones to convert into estradiol, with all its unpleasant side effects. The side effects that users of anti-estrogens experience, are an increased risk of bone fractures and pain in muscles and joints, are due to the drop in estrogen levels. This increases after years of use. The anti-estrogen on itself are only toxic in idioticly high doses.
The anti-estrogen Exemestane is not suitable to restore the natural production of testosterone after a steroids cycle. According to a molecular study of U.S. cancer researchers (13).
