Anastrozole is a medication primarily used in the treatment of hormone receptor-positive breast cancer in postmenopausal women. It belongs to a class of drugs called aromatase inhibitors.

By inhibiting the enzyme aromatase, anastrozole reduces the production of estrogen in the body. Since estrogen can fuel the growth of hormone receptor-positive breast cancer cells, lowering its levels can help slow down the progression of the disease.


Anastrozole is typically taken orally on a daily basis. It may be prescribed as part of adjuvant therapy following surgery or as a first-line treatment for advanced breast cancer. In some cases, it is also used for preventive purposes in women at high risk of developing breast cancer.

Like any medication, anastrozole can have side effects. Common ones include hot flashes, joint pain, fatigue, and bone thinning. Regular monitoring of bone health and other parameters may be recommended during treatment.


It’s important to inform the healthcare provider about all medications being taken, including over-the-counter drugs and supplements, as anastrozole may interact with other substances.

Overall, anastrozole plays a crucial role in the treatment of hormone receptor-positive breast cancer, working to suppress estrogen production and slow down cancer growth. It should be used under the guidance and prescription of a healthcare professional experienced in breast cancer treatment.

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