If you've been prescribed Welireg or are considering it, we'll walk you through what you need to know about this specialty medication.
About Welireg
BELZUTIFAN treats kidney cancer. It may also be used to treat some types of cancer and tumors in people with von Hippel-Landau syndrome. It works by blocking a protein that causes cancer cells to grow and multiply. This helps to slow or stop the spread of cancer cells.