Toremifene is a non-steroidal anti-estrogen medication. It is used to treat advanced stages of breast cancer in postmenopausal women, and is also used to prevent recurrence of breast cancer in postmenopausal women who have already been treated with surgery and radiation. It works by blocking the activity of the hormone estrogen in the body, which helps slow the growth of certain types of breast tumors that need estrogen to grow. Toremifene is taken orally in the form of a tablet.
Toremifene is a medication used to treat specific types of breast cancer in women. Here's a breakdown of its key aspects:
- Type of drug: Selective estrogen receptor modulator (SERM)
- Uses: Treats estrogen receptor-positive (ER-positive) metastatic breast cancer in postmenopausal women. ER-positive means the cancer cells have receptors for estrogen, a hormone that can fuel their growth. Metastatic breast cancer refers to cancer that has spread to other parts of the body from the breasts.
- How it works: Toremifene acts in two ways, depending on the tissue:
- Breast tissue: In breast tissue, toremifene acts as an anti-estrogen. It binds to estrogen receptors in breast cancer cells, blocking the effects of estrogen and hindering their growth.
- Other tissues (e.g., bones, uterus): In certain tissues like bones and the uterus, toremifene can have some estrogen-like effects. This can be beneficial for maintaining bone health and potentially reducing the risk of uterine lining thickening, a side effect sometimes seen with other breast cancer medications.
Here's a quick summary of Toremifene:
- Treated condition: ER-positive metastatic breast cancer in postmenopausal women
- Mechanism of action: Blocks estrogen's effect on breast cancer cells, while having some estrogen-like effects in other tissues.
Anatomical Therapeutic Chemical Classification
L - Antineoplastic and immunomodulating agents
L02 Endocrine therapy
L02B - Hormone antagonists and related agents
L02BA Anti-estrogens
ATC Code
External Links
Toremifene