Precautions

It is very important that your doctor check your or your child's progress at regular visits to make sure this medicine is working properly. Blood and urine tests may be needed to check for unwanted effects.

Check with your doctor right away at the first sign of an infection, such as fever, chills, cough, sore throat, or unusual tiredness or weakness.

Check with your doctor right away if you or your child have pain in the upper left part of your stomach or at the tip of the left shoulder. These could be symptoms of a serious condition with the spleen.

Check with your doctor right away if you or your child have a fever, chest pain or tightness, or trouble breathing. These could be symptoms of a serious lung condition called acute respiratory distress syndrome (ARDS).

This medicine may cause serious allergic reactions, including anaphylaxis, which can be life-threatening and requires immediate medical attention. Tell your doctor right away if you or your child have a rash, itching skin, dizziness, lightheadedness, or fainting, swelling of the face, tongue, or throat, trouble breathing, or chest pain after using the medicine.

This medicine may cause kidney problems. Call your doctor right away if you or your child have swelling in your face or ankles, blood in the urine, or a decrease in how much or how often you urinate.

This medicine may cause a condition called capillary leak syndrome. It can cause fluid to leak from the blood vessels into your body's tissues. Call your doctor right away if you or your child have swelling or puffiness, urinating less often, trouble breathing, feeling of fullness, dizziness, or feeling faint.

This medicine may cause aortitis (inflammation of the aorta, the largest artery in the body). Check with your doctor right away if you have fever, stomach pain, unusual tiredness or weakness, or back pain.

Make sure any doctor or dentist who treats you knows that you are using this medicine. This medicine may affect the results of certain medical tests (eg, bone-imaging test).