Used primarily in the treatment of hormone receptor-positive breast cancer in postmenopausal women. It functions as a selective estrogen receptor modulator (SERM), blocking estrogen effects in breast tissue, which helps slow or stop the growth of cancer cells. Also investigated for potential use in reducing the risk of cancer recurrence and in osteoporosis management due to its estrogen-like effects on bone. Some studies explore its role in mitigating side effects of steroid use, such as gynecomastia, in clinical settings.