Nausea, diarrhea, vomiting, dizziness, tiredness, headache, heartburn, change in taste, loss of appetite, mouth sores, joint pain, trouble sleeping, or constipation may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
This medication may lower your ability to fight infections. This may make you more likely to get a serious (rarely fatal) infection or make any infection you have worse. Tell your doctor right away if you have any signs of infection (such as cough, sore throat, fever, chills).
Tell your doctor right away if you have any serious side effects, including: vision changes (such as blurred/decreased vision, flashes of light, sensitivity to light, floaters), swelling of the legs/feet/hands.
Get medical help right away if you have any very serious side effects, including: symptoms of lung problems (such as trouble breathing, cough), eye pain/swelling/redness, fast/slow/irregular heartbeat, severe dizziness, fainting, easy bleeding/bruising, symptoms of liver problems (such as nausea/vomiting that doesn't stop, dark urine, stomach/abdominal pain, yellowing eyes/skin).
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
Crizotinib can commonly cause a rash that is usually not serious. However, you may not be able to tell it apart from a rare rash that could be a sign of a severe reaction. Tell your doctor right away if you develop any rash.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.