Femara, generically known as letrozole, is a medication primarily used in the treatment of breast cancer. It belongs to a class of drugs known as aromatase inhibitors, which work by decreasing the amount of estrogen produced by the body. This reduction in estrogen is particularly beneficial in treating certain types of breast cancer that grow in response to this hormone. Femara is often prescribed for postmenopausal women and is used in cases of early breast cancer following surgery or radiation, as well as for advanced stages of the disease. It may also be utilized in fertility treatments due to its ability to stimulate ovulation. As with any medication, it is important to use Femara under the guidance of a healthcare professional to ensure its efficacy and manage any potential side effects.