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

Exemestane works by reducing the production of estrogen in the body. It inhibits the enzyme aromatase, which is responsible for converting androgens into estrogen. By lowering estrogen levels, exemestane helps to slow down or stop the growth of hormone-dependent breast cancer cells.


The medication is typically taken orally in the form of tablets. The dosage and treatment duration depend on the specific characteristics of the breast cancer, as well as the individual’s overall health.

Common side effects of exemestane may include hot flashes, fatigue, joint pain, and increased sweating. More serious side effects, such as bone loss or changes in lipid levels, can occur but are less common. Regular monitoring of bone density and cholesterol levels may be recommended during treatment.


Exemestane should only be used under the guidance and prescription of a qualified healthcare professional experienced in the treatment of breast cancer. It may interact with other medications, so it is important to inform the healthcare provider about all medications being taken, including over-the-counter drugs and supplements.

In summary, exemestane is a medication used in the treatment of hormone receptor-positive breast cancer. It inhibits estrogen production to slow down cancer cell growth. Regular monitoring and adherence to healthcare provider instructions are important during exemestane treatment.

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