The risk of developing breast cancer in women because of high estrogenic amounts in there adipose tissues. The dose of Tamoxifen will be different for different patients. Tamoxifen increases the chance of cancer of the uterus in some women taking it. The gains of the cycle could diminish slightly. A very effective treatment. Women with breast cancer, it might also help them to conceive. Tamoxifen should not be used to reduce the risk of developing breast cancer in female patients. In such cells has proven to be a very effective treatment.