Used primarily in the treatment of estrogen receptor-positive breast cancer, this compound acts as a selective estrogen receptor modulator (SERM) with strong antiestrogenic activity. It effectively blocks estrogen action in breast tissue, inhibiting the growth of hormone-sensitive tumors. Due to its high potency and long-lasting effects, it is investigated for use in both early and advanced stages of breast cancer. It may also be considered in hormone replacement therapy research where suppression of estrogenic activity is required. Its favorable tissue selectivity makes it a candidate for reducing the risk of cancer recurrence with minimal impact on bone or cardiovascular systems.