Keytruda (Pembrolizumab)

Keytruda (Pembrolizumab) is an immunotherapy medication used to treat certain cancers. It works by blocking a protein called PD-1 on immune cells, which cancers often exploit to hide from the immune system. By inhibiting PD-1, Keytruda helps the immune system recognize and attack cancer cells more effectively. It is typically administered through intravenous infusion and is used for a variety of cancers, including melanoma, lung, and bladder cancer. While effective for some patients, it can cause side effects related to immune system activation, so careful monitoring by healthcare providers is essential.