What is the usage of Keytruda Injection? It is given to the patients of cancer. Keytruda Injection treats variants of cancer by stopping the growth of cancer cells. It is a prescription based medicine that is trusted by doctors to treat cancer. It belongs to the immunotherapy medicine group that is used to make the immune system stronger to fight cancer. https://www.magicinepharma.com/injection/keytruda-pembrolizumab