[Medical oncology treatment].

Although patients over 65 years of age represent the majority of breast cancer patients, we have limited data on the safety and efficacy of medical oncology treatments in this population. Their indications are based primarily on expert agreement. This literature review discusses the known data on the safety and efficacy of the main medical treatments for breast cancer: chemotherapy, cytokine-dependent kinase inhibitors 4/6, agents targeting human epidermal growth factor receptor-2, novel antibody conjugates, and immunotherapy.