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Omalizumab is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by asthma that is due to year-round allergens. Controlling symptoms of asthma helps you maintain your normal activities and cuts down on time lost from work or school. Omalizumab may also be used to treat certain growths in the nose (chronic rhinosinusitis with nasal polyps) or to treat hives from an unknown cause (chronic spontaneous urticaria-CSU).

Omalizumab is also used in people with a certain type of food allergy (IgE-mediated food allergy) while continuing to avoid food allergens. It may help lower the risk of having serious allergic reactions.

This medication must be used regularly to be effective. It does not work right away and should not be used as an emergency treatment for serious allergic reactions or to relieve sudden asthma attacks. If an asthma attack occurs, use your quick-relief inhaler (such as albuterol, salbutamol) as prescribed.

How to Use This Medication

Read the Medication Guide provided by your pharmacist before you start using omalizumab and each time you get a refill. If you are using this medication at home, read and follow the Instructions for Use leaflet. If you have any questions, ask your doctor or pharmacist.

This medication is injected under the skin as directed by your doctor, usually every 2 or 4 weeks. The first dose is given by a health care professional and you will be monitored in case you have a severe allergic reaction. Later doses may be given by a health care professional or at home.

The dosage and treatment schedule are based on your medical condition and response to treatment. For the treatment of asthma, nasal polyps, and food allergies, the dosage is also based on your weight and lab test results. Tell your doctor if you have any big changes in weight during treatment. Your dose may need to be adjusted.

If you are using this medication at home, learn all preparation and usage instructions from your health care professional. Before using, check this product visually for particles or discoloration. If either is present, do not use the liquid. Learn how to store and discard medical supplies safely.

To increase comfort and make it easier to inject, take the carton(s) out of the refrigerator and let the medication warm to room temperature for at least 30 to 45 minutes before use. Do not warm up this medication in any other way such as heating in the microwave or placing in hot water.

Use this medication regularly to get the most benefit from it. To help you remember, mark your calendar to keep track of when to get the next dose.

Get medical help right away if your asthma symptoms worsen or if you are using your quick-relief inhaler more than usual or more often than prescribed.

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