Common side effects of exemestane tablets include abdominal pain, nausea, and vomiting, which usually disappear after stopping the drug for 2 to 3 days. However, liver and kidney damage caused by long-term use will persist and will slowly decrease after stopping the drug. Exemestane tablets are mainly used for the adjuvant treatment of early invasive star breast cancer in postmenopausal estrogen receptor-positive women after 2~3 years of adjuvant treatment with tamoxifen until completion of a total of 5 years of adjuvant endocrine therapy. and for advanced breast cancer in naturally or artificially postmenopausal women whose disease has progressed despite treatment with tamoxifen. Patients who take it for a long period of time can experience adverse reactions such as abdominal pain, nausea, vomiting, increased appetite, and weight gain. Symptoms related to pain in joints and bones can also occur. It manifests as muscle pain, joint pain and other symptoms. Taking exemestane tablets for a long period of time has the potential to damage liver and kidney function. It is contraindicated for pregnant women and forbidden for women who are breastfeeding. The drug is recommended to be taken under the doctor’s supervision, and should not be used blindly on its own, as an overdose will affect the health of the patient, and adverse reactions will occur.