Keytruda (pembrolizumab) is a medication used to treat several types of cancer, including: Advanced melanoma Metastatic nonsquamous non-small cell lung cancer (NSCLC) Recurrent or metastatic Head and Neck Squamous Cell Carcinoma (HNSCC) Recurrent classical Hodgkin Lymphoma (cHL) Locally. https://t.me/researchchemicalschina