Gefitinib Uses Gefitinib is used in the treatment of non-small cell lung cancer. It is indicated for patients whose cancer has spread to other parts of the body, who have abnormal epidermal growth factor receptor (EGFR) genes, and who have not received prior treatment for cancer.
How Gefitinib works Gefitinib is an anti-cancer medication that functions by inhibiting the action of the abnormal protein responsible for signaling cancer cells to multiply. This mechanism helps to stop or slow the spread of cancer cells.
Common side effects of Gefitinib include diarrhea, nausea, stomatitis (inflammation of the mouth), vomiting, weakness, decreased appetite, fever, hair loss, conjunctivitis, eyelid inflammation, hemorrhage, interstitial lung disease, dryness of the mouth, angioedema (swelling of deeper layers of skin), and urticaria.