Exemestane is a drug used to treat breast cancer in post-menopausal women (women who have gone through the menopause). Taken as a tablet once a day, it’s a type of hormone therapy (also known as endocrine therapy) and belongs to a group of drugs called aromatase inhibitors.
Exemestane is the generic (non-branded) name of the drug. You may also hear it called Aromasin, which is its most well-known branded name, but there are a number of other brands of exemestane that your doctor may prescribe. All brands contain the same dose of the drug.
Men with breast cancer may also be given exemestane, although tamoxifen is more commonly used.