Learn about KEYTRUDA® (pembrolizumab), an immunotherapy that works with your immune system to help fight certain cancers. Visit the patient website.

Learn how KEYTRUDA® (pembrolizumab) works with your immune system to help fight cancer cells. Watch two videos about immunotherapy and how it works in the body.

See how long treatment takes and other information on what to expect when taking KEYTRUDA® (pembrolizumab).

KEYTRUDA is a prescription medicine used to treat: a kind of lung cancer called non–small cell lung cancer (NSCLC).. It may be used in combination with chemotherapy that contains platinum and another chemotherapy medicine before surgery when you have early-stage NSCLC, which can be removed by surgery, and then continued alone after surgery to help prevent your lung cancer from coming back.

Learn about the side effects that may occur while taking KEYTRUDA® (pembrolizumab). Review serious side effects and common side effects with KEYTRUDA.

Learn about cost information, insurance, and potential financial assistance options with KEYTRUDA® (pembrolizumab). See more at keytruda.com.

KEYTRUDA is a prescription medicine used to treat: a kind of lung cancer called non–small cell lung cancer (NSCLC).. It may be used in combination with chemotherapy that contains platinum and another chemotherapy medicine before surgery when you have early-stage NSCLC, which can be removed by surgery, and then continued alone after surgery to help prevent your lung cancer from coming back.

KEYTRUDA is a prescription medicine used to treat: a kind of lung cancer called non–small cell lung cancer (NSCLC).. It may be used in combination with chemotherapy that contains platinum and another chemotherapy medicine before surgery when you have early-stage NSCLC, which can be removed by surgery, and then continued alone after surgery to help prevent your lung cancer from coming back.

View tips and resources that may help while receiving KEYTRUDA® (pembrolizumab) including what to expect with your first infusion appointment and what to know about your treatment schedule.

Find answers to frequently asked questions about KEYTRUDA® (pembrolizumab) including how does KEYTRUDA work, PD-L1 testing information, and more.