This is a list of antiandrogens, or drugs that prevent the effects of androgens like testosterone and dihydrotestosterone (DHT). It includes direct antagonists of the androgen receptor (AR), androgen synthesis inhibitors like 5α-reductase inhibitors and CYP17A1 inhibitors, and antigonadotropins like GnRH analogues, estrogens, and progestogens. In addition, it includes both steroidal antiandrogen (SAAs) and nonsteroidal antiandrogen (NSAAs). Only antiandrogens that have been marketed are included in this list.