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What should I know about Xolair before taking it?

Xolair may cause a life-threatening allergic reaction, called anaphylaxis, in certain people. Anaphylaxis is marked by swelling of your tongue, lips, throat or face; breathing difficulties, including wheezing and tightness in your chest; fainting; anxiety; dizziness; hot skin; a "pins and needles" sensation; and hives or rash. You may experience sudden anaphylaxis after your first dose of Xolair or more than one year after beginning Xolair, with no intervening symptoms. If you have any symptoms of anaphylaxis, seek emergency medical attention immediately. It is also important to know that the medication may not work immediately and symptom relief my only occur after regular, consistent use.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.