The uses of LETROZ include: This medication is used in women who have experienced menopause (change of life; end of monthly menstrual periods) to:
treat breast cancer that has spread within the breast or to other areas of the body.
treat early breast cancer in women who have already been treated with surgery, radiation and/or chemotherapy. Letrozole is sometimes used right after these treatments and sometimes after 5 years of treatment with a medication called tamoxifen (Nolvadex). Letrozole is used to stop any cancer cells that remain after these treatments from spreading.
Letrozole is in a class of medications known as nonsteroidal aromatase inhibitors. It decreases the amount of estrogen produced by the body. This can slow or stop the growth of some breast tumors that need estrogen to grow.
Letrozole is usually taken once a day, with or without food. Try to take letrozole at around the same time every day. Follow the directions on your prescription label carefully and ask your doctor or pharmacist to explain anything you do not understand. Take letrozole exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
You may need to take letrozole for several years or longer. Continue to take letrozole even if you feel well. Do not stop taking letrozole without talking to your doctor.
If you forget to take a dose of letrozole, take the missed dose as soon as you remember it. However, if it is almost time for your next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed dose and do not take more than one dose of letrozole in one day.