• Nausea can occur initially
  If nausea occurs, take Gefitinib right after a meal.
• Loss of appetite
• Diarrhea
• Acne-like rash 
  May gradually develop but can sometimes improve and decrease in severity with time. 
• Dryness of eyes
• Tiredness and lack of energy may occur

Inform your doctor if any of the following occurs:

• Allergic reactions – rashes, swelling, breathing difficulty
• Severe diarrhea
• Breathlessness, cough and fever
• Changes in vision, eye pain or irritation
• Yellowing of the eyes or skin, dark tea-colored urine
• Severe abdominal pain

• ​Inform your doctor or pharmacist if you are taking any other medication or supplements e.g. antacids or gastric acid-lowering agents.
• Use effective birth control during treatment and for at least 2 weeks after stopping Gefitinib.

Grapefruit and its juice