Xolair (generic: omalizumab) is a prescription medication used to decrease asthma attacks (wheezing, shortness of breath, difficulty breathing) in people with asthma caused by dander, pollen, and dust mites (allergic asthma). Xolair belongs to a group of drugs called monoclonal antibodies which work by blocking IgE antibodies. IgE antibodies play a role in allergic reactions.
This medication comes in an injectable form to be given just under the skin by a healthcare provider. It is usually given once every 2 weeks, or once every 4 weeks.
Common side effects of Xolair include redness and pain at the site of injection, and joint or body pains.
Xolair is a prescription medication used in people who are at least 12 years of age, with moderate to severe allergic asthma, whose symptoms are not controlled by inhaled corticosteroid medications.
This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.
The most common side effects of Xolair include:
- pain, redness at injection site
- joint pain
- body pain
- leg pain
- ear pain
This is not a complete list of Xolair side effects. Ask your doctor or pharmacist for more information.
No Xolair drug interactions have been identified, however, you should tell your doctor about all the medicines you take including prescription and non-prescription medicines, vitamins, and herbal supplements. Not all drug interactions are known or reported and new drug interactions are continually being reported.
Tell your doctor if you are receiving allergy shots (allergy immunotherapy). It is not known if Xolair interacts with allergen immunotherapy.
A severe allergic reaction called anaphylaxis has happened in some patients after they received Xolair. Anaphylaxis is a life-threatening condition and can lead to death so get emergency medical treatment right away if symptoms occur.
Signs and Symptoms of anaphylaxis include:
- wheezing, shortness of breath, cough, chest tightness, or trouble breathing
- low blood pressure, dizziness, fainting, rapid or weak heartbeat, anxiety, or feeling of “impending doom”
- flushing, itching, hives, or feeling warm
- swelling of the throat or tongue, throat tightness, hoarse voice, or trouble swallowing
Get emergency medical treatment right away if you have signs or symptoms of anaphylaxis after receiving Xolair.
Anaphylaxis from Xolair can happen:
- right after receiving a Xolair injection or hours later
- after any Xolair injection. Anaphylaxis has occurred after the first Xolair injection or after many Xolair injections.
Your healthcare provider should watch you for some time in the office for signs or symptoms of anaphylaxis after injecting Xolair. If you have signs or symptoms of anaphylaxis, tell your healthcare provider right away.
Your healthcare provider should instruct you about getting emergency medical treatment and further medical care if you have signs or symptoms of anaphylaxis after leaving the doctor’s office.
Medicines can interact with certain foods. In some cases, this may be harmful and your doctor may advise you to avoid certain foods. In the case of Xolair there are no specific foods that you must exclude from your diet when receiving Xolair.
Before receiving Xolair, tell your doctor:
- if you are allergic to Xolair or any other medicine.
- if you will be traveling to (or live in) areas that have high risk for parasitic infections.
- if you are pregnant.
- if you are breastfeeding.
Tell your doctor about all the medicines you take including prescription medicines, vitamins, and herbal supplements.
Tell your doctor if you are pregnant or plan to become pregnant. It is not known if Xolair will harm your unborn baby. If you receive Xolair during pregnancy (or within 8 weeks prior to conception), call 1-866-4XOLAIR (1-866-496-5247) to enroll in the Xolair Pregnancy Exposure Registry.
Tell your doctor if you are breastfeeding or plan to breastfeed. It is not known if Xolair is excreted in human breast milk or if it will harm your nursing baby.
Xolair comes as a solution to be injected just under the skin. It is usually given by injection once every 2 weeks, or once every 4 weeks, by a healthcare provider in a doctor's office or other medical setting.
Your doctor will determine the Xolair dose you require. The dose varies depending on your weight and your IgE level. IgE is a natural substance in your body that that is elevated in allergic asthma. A blood test is used to test your IgE level.
Xolair is usually administered by a healthcare provider in a medical setting making it unlikely for an overdose to occur. However, if overdose is suspected, seek emergency medical attention.
Active ingredient: omalizumab
Inactive ingredients: sucrose, histidine monohydrochloride monohydrate, histidine, polysorbate 20.
Keep all medical and laboratory appointments.
Anaphylaxis presenting as bronchospasm, hypotension, syncope, urticaria, and/or angioedema of the throat or tongue, has been reported to occur after administration of Xolair. Anaphylaxis has occurred as early as after the first dose of Xolair, but also has occurred beyond 1 year after beginning regularly administered treatment. Because of the risk of anaphylaxis, observe patients closely for an appropriate period of time after Xolair administration. Health care providers administering Xolair should be prepared to manage anaphylaxis that can be life-threatening. Inform patients of the signs and symptoms of anaphylaxis and instruct them to seek immediate medical care should symptoms occur.