What are the Geftinat 250mg Side Effects? This medicine is prescribed to treat non-small cell lung cancer in specific patients. There are some common Geftinat 250mg Side Effects that include diarrhea, fever, allergic skin reaction, nausea, vomiting, increase in liver enzyme levels, eye irritation, etc. Contact your doctor immediately if you experience any unusual or serious side effect. Visit the site of Magicine Pharma to know other detailed information about the medicine. Read More - https://www.magicinepharma.com/tablet/geftinat-gefitinib