Gefipeace 250 Tablet is an antineoplastic drug belonging to the tyrosine kinase inhibitors, containing the active ingredient Gefitinib. It is used to treat non-small cell lung cancer. Non-small cell lung cancer is a disorder in which cells multiply in an uncontrolled and abnormal manner in the tissues of the lung. It is used in patients where the NSCLC cancer has spread to other parts of the body, who have certain types of abnormal epidermal growth factor (EGFR) genes, and patients who have not received any cancer treatment. Some formulations of Gefipeace 250 Tablet may contain lactose as an inactive ingredient in which the body is unable to digest lactose, a sugar found in milk and dairy products. It can cause symptoms such as bloating and abdominal pain. If you have lactose intolerance, inform your doctor before starting this therapy. Talk with your healthcare provider if you have kidney or liver disease, vision problems, lung problems or are taking any blood thinner like warfarin. Your healthcare provider will check regular blood tests to prevent complications. Avoid consuming alcohol as it may cause dizziness. Consult your doctor before using this medication if you are pregnant or plan to have a baby. Gefipeace 250 Tablet are unsafe to use during pregnancy as they cause harm to an unborn fetus. Your health care practitioner will conduct a pregnancy test before you start treatment with Gefipeace 250 Tablet. Avoid breastfeeding your baby while on the treatment as it is unknown if Gefipeace 250 Tablet passes into breast milk.