How does tamoxifen work?

Answer 1

Most breast cancers are Estrogen fueled , called receptor positive. After treatment, most women with that type of breast cancer are put on Tamoxifen for 3-5 years , it is an Estrogen blocking drug and can aid in preventing the BC from returning.

Answer 2

Tamoxifen, or commonly for its brand name as Nolvadex, works by binding into the breast tissues before estrogen can bind on the tissue receptors. As what we might know, Breast cancer is fed through estrogen. However, tamoxifen does not suppress estrogen production, which is one of its advantages. Therefore, other parts of the body can still benefit with estrogen