After you complete surgery, chemotherapy or radiation therapy for breast cancer, sometimes your doctor will prescribe additional medicine to take on an ongoing basis. Many times it is Tamoxifen or an aromatase inhibitor, both often can cause uncomfortable side effects. Medicla oncologist, Milana Dolezal, provides an overview of what is normal and what is not normal when taking these medicines. She also shares tips on how to manage and reduce these medicines' side effects.