Yes and no. Unfortunately, eBay has become something of a customer service nightmare for most people, as is evidenced by the results of any search for contact eBay, call eBay, chat with eBay, or similar phrases. Articles, blog posts, and websites offering contact information all give different answers, and most of them are wrong.
It inhibits the action of aromatase enzymes, which causes the body to produce less estrogen. Because many breast cancers are sensitive to estrogen, less estrogen in the body can help keep the cancer from spreading. Anastrozole is used for off-label reasons as well, such as treating excess estrogen production in men.
For the most part yes, but there is estrogen found in all men, and women do need small amounts of testosterone. There is, however, a growing need to understand the effects of estrogen in men. Like all hormones, estrogen needs to be kept in balance in both men and women. Chronic health conditions are more likely to occur in men as a result of estrogen levels becoming too high. Testosterone and estrogen are actually very closely related in the body. A look at their chemical structure reveals only subtle differences. Yet, the differences of the effects of these two hormones on the body are substantial.