Anastrozole: A Comprehensive Guide to its Brand Names, Uses, Interactions, Side Effects and Mode of Action

Anastrozole: A Comprehensive Guide

Brand Names

Anastrozole is sold under the brand name Arimidex.


Anastrozole is primarily used to treat breast cancer in postmenopausal women. It is also used off-label to treat gynecomastia in men and to prevent breast cancer in high-risk women.


Anastrozole may interact with other medications, including estrogen-containing drugs, tamoxifen, and warfarin. It is important to inform your doctor of all medications you are taking before starting anastrozole.

Side Effects

Common side effects of anastrozole include hot flashes, joint pain, fatigue, nausea, and headache. Serious side effects may include bone loss and increased risk of fractures, liver problems, and cardiovascular events.

Mode of Action

Anastrozole works by blocking the production of estrogen, which can fuel the growth of certain types of breast cancer. It is classified as an aromatase inhibitor, which means it inhibits the enzyme responsible for converting androgens into estrogen. By reducing estrogen levels, anastrozole can help slow or stop the growth of breast cancer cells.
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