Cancer medicines
Pembrolizumab
Pembrolizumab
An immune checkpoint inhibitor targeting PD-1.
Sources checked · Introductory guide
On this page
How it works
Blocks PD-1 signaling to help immune cells attack cancer.[1]
Where it is used
Used across cancers, with eligibility depending on type, stage, biomarkers and combination medicines.[1]
Key safety points
Immune reactions can inflame organs. Report new breathlessness, severe diarrhea, jaundice or marked fatigue promptly.[2]
Questions for your care team
- Which biomarkers matter for me and which immune symptoms should I report?
Sources and scope
Source documents are in English.
General information based on official public sources. This is not a complete list of uses or side effects. Individual treatment decisions require your care team and current source documents. US-source uses do not establish local approval or reimbursement.