Background and objective Gefitinib is an epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) that has been widely used for the treatment of non-small cell lung cancer (NSCLC). It is most effective in women. as well as in patients who have never smoked. have pulmonary adenocarcinomas. https://stilleners.shop/product-category/vertex-kits/