Nope! There are a number of different kinds of estrogen blockers. Aromatase inhibitors actually block the production of estrogen. Some examples include vorozole, testolactone, and formestane. Selective estrogen receptor modulators such as tamoxifen, clomifene, and arzooxifene are designed to block estrogen receptors, behaving slightly differently in different kinds of tissue. Antiestrogens also act to block estrogen receptors.
RADAR