Used primarily in cancer treatment, it acts as an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor. It is effective in targeting and blocking the signaling pathways that promote tumor growth, particularly in non-small cell lung cancer. By inhibiting EGFR, it helps in reducing the proliferation of cancer cells and can be used as part of targeted therapy regimens. Additionally, it has been studied for its potential in treating other EGFR-overexpressing cancers, such as breast, ovarian, and colorectal cancers. Its role in improving patient outcomes and its specificity in targeting cancer cells make it a valuable component in oncology therapeutics.