Toremifene

Drug Details

Toremifene, marketed as Fareston, is prescribed for postmenopausal women to manage metastatic breast cancer that is hormone-receptor positive (HR+), or in cases where the estrogen reliance of the tumor is unknown. This oral medication, taken once daily, functions as a selective estrogen receptor modulator. By blocking estrogen's effects, Toremifene helps to slow or halt the growth of certain breast cancers that depend on this hormone. While effective, it is less commonly used than other treatments. Patients should be aware of potential side effects, including the risk of serious heart rhythm changes, and discuss any concerns with their healthcare provider.