Stop using this medicine and get emergency medical help if you have signs of an allergic reaction to Hizentra: hives; wheezing, chest tightness, difficult breathing; dizziness, feeling like you might pass out; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
a blood cell disorder - pale or yellowed skin, dark colored urine, fever, confusion or weakness;
kidney problems - little or no urination, swelling, rapid weight gain, feeling short of breath;
lung problems - chest pain, trouble breathing, blue colored lips, fingers, or toes;
signs of a new infection - fever with a severe headache, neck stiffness, eye pain, and increased sensitivity to light; or
signs of a blood clot - shortness of breath, chest pain with deep breathing, rapid heart rate, numbness or weakness on one side of the body, swelling and warmth or discoloration in an arm or leg.
Common Hizentra side effects may include:
wheezing, trouble breathing;
pain, redness, bruising, itching, swelling, or a hard lump where the medicine was injected;
fever, tiredness, dizziness;
nausea, vomiting, diarrhea, bloating, stomach pain;
itching, rash, or other skin problems;
cold or flu symptoms such as stuffy nose, sneezing, sore throat, cough;
headache, migraine; or
pain anywhere in your body.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Hizentra side effects (more detail)
