Pembrolizumab

Pembrolizumab, sold under the brand name Keytruda, is a humanized antibody used in cancer immunotherapy that treats melanoma, lung cancer, head and neck cancer, Hodgkin lymphoma, stomach cancer, cervical cancer, and certain types of breast cancer.[3][5][6][7] It is given by slow injection into a vein.[6] Common side effects include fatigue, musculoskeletal pain, decreased appetite, itchy skin (pruritus), diarrhea,... [wikipedia]