The medicine contains the active substance letrozole and belongs to a group of medicines called aromatase inhibitors. The drug is a hormonal (or ''endocrine'') treatment for breast cancer. The medicine is used to prevent breast cancer from coming back. It can be used either as the first treatment after breast surgery or after five years of treatmen...
The medicine contains the active substance letrozole and belongs to a group of medicines called aromatase inhibitors. The drug is a hormonal (or ''endocrine'') treatment for breast cancer. The medicine is used to prevent breast cancer from coming back. It can be used either as the first treatment after breast surgery or after five years of treatment with the drug tamoxifen. The medicine is also used to stop breast cancer from spreading to other parts of the body in patients with advanced disease.