Xovoltib 40 mg Tablet is used in the treatment of non-small cell lung cancer. It is used in patients in whom the cancer has spread to other parts of the body (metastatic), who have abnormal epidermal growth factor receptor (EGFR) genes, and have not been previously treated for metastatic lung cancer. Xovoltib 40 mg Tablet is an anti-cancer medication. It works by blocking the action of the abnormal protein that signals cancer cells to multiply. This helps to stop or slow the spread of cancer cells.