Capecitabine is an anti-cancer medication containing cetuximab, a monoclonal antibody that targets and inhibits the epidermal growth factor receptor (EGFR), a protein involved in cancer cell growth. It is primarily used to treat non-small cell lung cancer (NSCLC) and other solid tumors. By blocking EGFR, Capnat helps slow down the growth of cancer cells and can be used in combination with chemotherapy or radiation for enhanced treatment effectiveness.