Letrozole is available in both imported and domestic form, with domestic prices around$120. Imported Letrozole tablets, also known as Flon, are priced at around$1,200. The price of Letrozole cannot be generalized and can vary slightly due to manufacturer and region. Letrozole is an aromatase inhibitor that reduces the conversion of androgens to estrogens in the body, and is useful in the treatment of estrogen-dependent breast cancer. Due to the treatment of postmenopausal patients with advanced breast cancer for which anti-estrogen therapy is ineffective.