Tykerb is an anticancer drug, the active substance – lapatinib. It is a selective agent that destroys intracellular tyrosine-specific protein kinases, which bind to specific receptors. After the first dose. It is taken in combination with patients with breast metastases. Women with a disease such as advanced breast cancer are usually prescribed capecitabine. This combination reduces the risk of cancer and significantly reduces the risk of cancer. Qualified specialist,who already has experience in anticancer therapies. Since the treatment of malignant must be supervised by a physician. Before starting treatment, you should be given the status of the HER2 gene. Next, you should determine the left ventricle of the heart; The procedure should not be carried out.