The medicine is used to treat breast cancer in menopausal women. It lowers the estrogen level which is responsible for the growth of cancer cells. Some common side effects along with benefits are joint pain, insomnia increased sweating, headache, nausea, and fatigue. It is unsafe for pregnant and breastfeeding women as it can cause harm to the baby. You may find the Exemestane 25 mg price bit expensive. But, one may get at the best price on discounts.