Tamoxifen citrate tablets are endocrine therapeutic drugs, which are mainly used clinically for the treatment of pre- and post-menopausal hormone receptor-positive breast cancer patients, ovarian cancer patients whose advanced chemotherapy is ineffective, and endometrial cancer patients with advanced recurrence. Common adverse reactions after the application of Tamoxifen tablets are as follows: 1. gastrointestinal reactions, mainly manifested as nausea, vomiting, abdominal pain, diarrhea, etc. 2. reproductive side effects, mainly manifested as menstrual disorders, menopause, vaginal bleeding, etc. 3. skin side effects, manifested as facial flushing, rash, etc. 4. psychoneurological symptoms, mainly manifested as headache, vertigo, etc. 5. changes in blood routine, patients may experience 6. Patients may also have abnormal liver function.