Which hormone therapy medication is specifically used for estrogen receptor-positive breast cancer?

Tamoxifen is a selective estrogen receptor modulator (SERM) that is specifically utilized in the treatment of estrogen receptor-positive breast cancer. This medication works by binding to estrogen receptors on tumors, effectively blocking estrogen from stimulating the cancer cells to grow. This is particularly important in breast cancers that are estrogen receptor-positive, as these tumors rely on estrogen for their growth and proliferation.

Tamoxifen is commonly prescribed not only for the treatment of established breast cancer but also for prevention in women at high risk of developing the disease. Its role in these scenarios underscores its effectiveness and suitability as a targeted therapy for this specific type of cancer.

While other medications listed, such as Raloxifene, Letrozole, and Exemestane, also have roles in the management of breast cancer, they are not as specifically indicated for the initial treatment of estrogen receptor-positive breast cancer as Tamoxifen. Raloxifene is more often used for osteoporosis and has some preventive effects in breast cancer, but it's not the first-line therapy for treating active cancer. Letrozole and Exemestane are aromatase inhibitors, employed primarily in postmenopausal women, and are typically used after tamoxifen or in specific circumstances. Hence, Tam