Sutinat 12.5mg Capsule(Sunitinib), as a tyrosine kinase inhibitor, works by blocking certain enzymes called tyrosine kinases that are involved in the growth and spread of cancer cells. This medication treats gastrointestinal stromal tumors (GIST), rare cancer that can start anywhere in the gastrointestinal tract. This medication is also used to treat advanced kidney cancer and pancreatic cancer called pancreatic neuroendocrine tumors (PNET). Cancer is a disorder in which abnormal cells grow in an uncontrolled manner.