What are bisphosphonates?
Bisphosphonates are drugs that may be used to reduce the risk of spreading to the bones and other parts of the body in women who have been through the menopause.
The 2 drugs used to treat primary breast cancer are:
Bisphosphonates may also be prescribed:
How they work
Bisphosphonates slow down or prevent bone damage. You may hear bisphosphonates called bone-hardening or bone-strengthening treatment.
Research has shown bisphosphonates may reduce the risk of breast cancer spreading to the bones and elsewhere in the body in post-menopausal women being treated for primary breast cancer.
The benefits of using them before the menopause are less clear.