Tamoxifen is an oral preparation containing 20 mg of the substance Tamoxifen Citrate.Tamoxifen is not a steroid, rather a selective estrogen blocker. While Tamoxifen doesn't prevent the buildup of estrogen in the body, it does prevent it from acting on certain receptors, most notably, those located ..
Tamoxifen citrate is a nonsteroidal agent that has demonstrated potent antiestrogenic effects related to its ability to compete with estrogen for binding sites in target tissues. Tamoxifen citrate is an oral anti-estrogen and estrogen antagonist which competes with estrogen at the receptor sites red..