Crizotinib is used in the treatment of non-small cell lung cancer.

Crizotinib is an anti-cancer medication. It works by blocking the action of the abnormal protein that signals cancer cells to multiply. This helps to stop or slow the spread of cancer cells.

Nausea, Vomiting, Edema, Diarrhoea, Constipation, Abdominal pain, Vision disorder, Dizziness, Altered taste, Fatigue, Decreased appetite, Rash, Decreased white blood cell count (neutrophils)

• Inform your doctor before taking the medicine if you have lung problems, severe kidney disease, mild or moderate liver disease, reduced heart rate, abnormal ECG of heart, inflammation, perforation or cancer of the abdomen or intestines, or vision problems.
• Inform your doctor before taking the medicine for treatment of any infection, mental diseases, heart problems, migraine, gout, malaria, glaucoma, or cancer.
• You may be monitored for liver function, lung function test every month as crizotinib may cause life-threatening or fatal liver injury or inflammation of the lungs.
• Tell your doctor if you are or planning to become pregnant or are breastfeeding. 
• Do not drive or operate heavy machinery after taking this drug as it may cause dizziness, tiredness and problems with your vision.

Ques. Q. How is Crizotinib administered?
Crizotinib is generally administered in the form of capsules to be taken orally

Ques. Q. What is Crizotinib used for?
Crizotinib is used for treating non small-cell lung cancer caused due to a mutation or defect in a gene called as anaplastic lymphoma kinase in cancer cells in patients who have not responded to previous therapies

Ques. Q. How does Crizotinib work?
Crizotinib works by inhibiting an enzyme called as tyrosine kinase that transmits the signal for growth and spread of cancer cells.