WHAT IS LETROZOLE AND WHAT IT IS USED FOR The Letrozole is an aromatase inhibitor. This means that inhibits certain enzymes present in the body called aromatase. These enzymes affecting the production of certain female sex hormones such as estrogen in the body. By inhibiting these enzymes, Letrozole, leads to reduced amounts of estrogen present in the body. Letrozole is indicated for the treatment of breast cancer.
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