It is very important that your doctor check the progress of you or your child at regular visits to make sure that this medicine is working properly. Blood tests may be needed to check for unwanted effects.
If you or your child develop a skin rash, hives, or any allergic reaction to this medicine, check with your doctor as soon as possible.
This medicine may cause a rare but serious type of an allergic reaction called an infusion reaction. This can be life-threatening and require immediate medical attention. Tell your doctor right away if you or your child start to have a cough, difficulty with swallowing, dizziness, fast heartbeat, headaches, wheezing, trouble with breathing, chest tightness, swelling in your face or hands, fever, chills, itching or hives, nausea, unusual tiredness or weakness, or lightheadedness or faintness while you are receiving this medicine.