Image via WikipediaTamoxifen is a very common drug used in breast cancer.Tamoxifen has complex actions.This drug falls within the class of SERMs or selective estrogen receptor modulator.At some organs of the body tamoxifen acts as a potent estrogen antagonist that in these organs it opposes the action of estrogen.[example:breast].In other organs like the uterus it acts as an estrogen agonist, that is in other organs it increases the actions...
