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What are the Drug Class and Mechanism for Femara (Letrozole)?

April 26, 2017class drug femara letrozole mechanism

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What are the Drug Class and Mechanism for Femara (Letrozole)?

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Femara is an oral, anti-estrogen drug that is used for treating postmenopausal women with breast cancer. The growth of some breast cancers in postmenopausal women is promoted by estrogens that circulate in the blood, and the adrenal glands are the main source of these circulating estrogens. Femara inhibits the enzyme in the adrenal glands (aromatase) that produces the estrogens, estradiol and estrone. Femara was approved by the FDA in 1997.