What side effects may I notice from receiving Xolair?

Side effects that you should report to your doctor or health care professional as soon as possible:

-allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
-breathing problems
-changes in vision
-chest pain
-pain, tingling, numbness in the hands or feet
-sudden numbness or weakness of the face, arm or leg
-symptoms of joint pain or swelling, fever, and rash
-unusual bleeding or bruising
-unusually weak or tired
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

-headache
-nausea
-pain, redness or irritation at site where injected
-runny nose
-sore throat

This list may not describe all possible side effects for Xolair. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.