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.
Anastrozole is approved to treat certain types of breast cancer in postmenopausal women. In particular, the drug is used to treat breast cancer that is hormone receptor-positive or that has not responded to tamoxifen. The medication comes in tablet form, and is typically taken once a day.