Hormone therapy is used to treat breast cancers that are sensitive to hormones.
Commonly used hormone therapy in Breast cancers is directed against estrogen receptor positive (ER positive) and progesterone receptor positive (PR positive) cancers.
Hormone therapy can be used before or after surgery or other treatments to decrease the chance of cancer returning.
Treatments that can be used in hormone therapy include:
Medications that block hormones from attaching to cancer cells (selective estrogen receptor modulators)
Medications that stop the body from making estrogen after menopause (aromatase inhibitors)