It is very important that your doctor check your progress at regular visits to make sure that this medicine is working properly. Blood tests may be needed to check for unwanted effects.
Receiving this medicine while you are pregnant can harm your unborn baby. Use an effective form of birth control to keep from getting pregnant during treatment and for 3 months after your last dose. If you think you have become pregnant while receiving the medicine, tell your doctor right away.
Colitis (inflammation of the colon) may occur with this medicine. Tell your doctor right away if you have stomach pain or tenderness, watery or bloody diarrhea, or a fever after receiving the medicine.
Check with your doctor right away if you have pain or tenderness in the upper stomach, pale stools, dark urine, a loss of appetite, nausea, vomiting, or yellow eyes or skin. These could be symptoms of a serious liver problem.
Serious skin reactions can occur with this medicine. Check with your doctor right away if you have blistering, peeling, or loosening of the skin, red skin lesions, severe acne or skin rash, sores or ulcers on the skin, or fever or chills while you are receiving this medicine.
Check with your doctor right away if you are having unusual weakness of the arms or legs, or a burning, numbness, tingling, or painful sensation in the arms, hands, legs, or feet. These could be symptoms of a serious nerve problem that can lead to paralysis.
Serious problems with the adrenal, pituitary, or thyroid glands (hormone glands) may occur while you are receiving this medicine. Tell your doctor if you start having continuing or unusual headaches, changes in mood or behavior (eg, being irritable or forgetful), lightheadedness, dizziness, or fainting, unusual sluggishness, or an increase in weight.
Check with your doctor right away if blurred vision, difficulty with reading, eye pain, or any other change in vision occurs while you are receiving this medicine. Your doctor may want your eyes be checked by an ophthalmologist (eye doctor).
This medicine may increase the risk for other problems caused by the immune system, including pneumonitis (swelling of the lungs), nephritis (kidney problem), or encephalitis (swelling of the brain). Check with your doctor if you have the following problems: chest pain, thickening of bronchial secretions, troubled breathing, bloody or cloudy urine, unusual tiredness or weakness, nausea, vomiting, unusual weight gain, swelling of the face, feet, or lower legs, confusion, irritability, headache, seizures, or stiff neck.
This medicine may cause infusion-related reactions, which can be life-threatening and require immediate medical attention. Tell your doctor right away if you start to have a fever, chills or shaking, dizziness, trouble breathing, itching or rash, lightheadedness or fainting after receiving this medicine.