Xolair, also known as omalizumab, is a medication that belongs to the drug category of monoclonal antibodies, according to Medline Plus. It treats asthma attacks (a condition characterized by wheezing and trouble breathing) when inhaled steroids prove futile. It works by blocking immunoglobulin E (an antibody responsible for binding to mast cells and releasing histamines that cause your asthma symptoms). Xolair is available as an injection and should be taken as your doctor prescribes. If you are taking Xolair, know some of its bad side effects.
Serious Side Effects
Xolair may lead to serious side effects such as bleeding, numbness and weakness, according to Drugs.com. If you are allergic to Xolair's ingredients, you may develop such symptoms as skin rashes, chest tightness, breathing trouble and hives (red itchy welts on your skin). You may also experience anxiousness, fainting and swelling of your face, tongue or lips. Seek immediate medical attention if these serious side effects occur.
Common Side Effects
Medline Plus states that Xolair's common side effects include joint pain, ear pain and fatigue. You may also experience pain, redness and swelling at the site of Xolair's injection.
Parasites
According to Drugs.com, Xolair can increase your chances of becoming infected with parasitic worms if you travel abroad to endemic regions. If you plan to travel abroad, tell your doctor so protective measures can be taken to prevent this infestation.
Cancer
Medline Plus states that Xolair can increase your risk of cancers of the breast, skin, salivary and prostate (male reproductive gland). Almost anyone is susceptible to cancer, especially if you combine Xolair with a high risk or family history of cancer. However, it is unclear why Zolair itself causes cancer. Talk to your doctor to find out more about this risk.
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