Each GP Exemestane tablet contains 25 mg of Exemestane. GP Exemestane is available in a sachet of 20 tablets. GP Exemestane is prescribed to postmenopausal women who are diagnosed with certain kinds of breast cancer. For example, hormone-receptor-positive breast cancer is often treated with GP Exemestane in combination with other drugs. When the cancer has been defeated, GP Exemestane is often prescribed to prevent it from coming back. Estrogen often effect some types of breast cancer by promoting their growth. GP Exemestane acts to decrease the production of this hormone, and this way helps slow down or put a stop to the development of breast cancer.