Synopsis:Anastrozole is a potent selective three azole aromatase inhibitor, which inhibits the cytochrome P-450 dependent aromatase and thus blocks the biosynthesis of estrogen. Estrogen is a major factor in stimulating the growth of breast cancer cells. Letrozole is suitable for postmenopausal women with advanced breast cancer, and is used for second-line treatment after the failure of anti estrogen therapy.
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Summary
Anastrozole is a potent selective three azole aromatase inhibitor, which inhibits the cytochrome P-450 dependent aromatase and thus blocks the biosynthesis of estrogen. Estrogen is a major factor in stimulating the growth of breast cancer cells. Letrozole is suitable for postmenopausal women with advanced breast cancer, and is used for second-line treatment after the failure of anti estrogen therapy.