Androgens are hormones that control the development of sex characteristics. Those people are born with male sex characteristics have higher levels of androgens. On the other hand those are born with male sex characteristics have high levels of androgens. Instead, they have high levels of estrogens. Anti-androgen help to interrupt the effects of androgens, like testosterone.  Anti-androgen do this process by binding to proteins called androgen receptors. They attach to these receptors so that androgens can’t. There are various types of anti-androgens. They’re usually taken with other medications or during certain surgical procedures.