Evertor tablets contain the active ingredient everolimus, which is a type of medicine known as a protein kinase inhibitor. Evertor works by interfering with the pathways that signal certain cancer cells to grow.The way that cells in the body work and grow is regulated by various enzymes called protein kinases. These enzymes can be found in certain receptors on the surface of cells that are involved in the growth and spread of cancer cells.In cancerous cells, the kinases make the cells grow and multiply abnormally. Evertor also stimulate nearby blood vessels to grow into the tumour. The new blood vessels allow the cancer cells to grow and multiply by supplying them with oxygen and nutrients. They also allow the cancerous cells to spread into other areas of the body through the blood circulation.Everolimus works by attaching to a certain protein inside the cancer cells and blocking the action of a protein kinase called mammalian target of rapamycin (mTOR). This stops the signals that tell the cancer cells to grow and multiply. Evertor also stops blood vessels growing into the tumour. This reduces the tumour’s blood supply and with it, its supply of oxygen and nutrients. Both these effects stop the tumour from growing.