Skip to main content

Omalizumab (Subcutaneous route)

Pronunciation:

oh-ma-LIZ-oo-mab

Brand Names:

  • Xolair

Dosage Forms:

  • Powder for Solution

Warnings:

Subcutaneous route(Powder for Solution)

Anaphylaxis, presenting as bronchospasm, hypotension, syncope, urticaria, and/or angioedema of the throat or tongue, has been reported to occur after administration of omalizumab. Anaphylaxis may occur after the first dose or beyond 1 year after beginning omalizumab. Monitor patients closely after omalizumab administration and be prepared to manage life-threatening anaphylactic reactions .

Classifications:

Therapeutic—

Antiasthma

Pharmacologic—

Monoclonal Antibody

Uses of This Medicine:

Omalizumab injection is used to treat moderate to severe persistent allergic asthma. It is used when a patient's asthma has not been controlled sufficiently on other asthma medicines. This medicine will not relieve an asthma attack that has already started.

Omalizumab is a medicine called an IgE blocker. IgE is short for immunoglobulin E. IgE is a substance that occurs naturally in the body in small amounts. This substance plays an important role in allergic asthma. When people with allergic asthma breathe in a year-round allergen, such as cat or dog dander, their bodies make more IgE. This may cause a series of reactions in your body that can lead to asthma attacks and symptoms. Omalizumab works by helping to block IgE.

This medicine is available only with your doctor's prescription.

Before Using This Medicine:

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

Allergies—

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Children—

Appropriate studies have not been performed on the relationship of age to the effects of omalizumab injection in children younger than 12 years of age. Safety and efficacy have not been established.

Older adults—

Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of omalizumab injection in the elderly.

Pregnancy—

Pregnancy CategoryExplanation
All TrimestersBAnimal studies have revealed no evidence of harm to the fetus, however, there are no adequate studies in pregnant women OR animal studies have shown an adverse effect, but adequate studies in pregnant women have failed to demonstrate a risk to the fetus.

Breast-feeding—

There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Other medicines—

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.

Other interactions—

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.

Proper Use of This Medicine:

A nurse or other trained health professional will give you this medicine. Omalizumab is given as a shot under your skin.

You will receive omalizumab once every 2 or 4 weeks. Your dose will be determined by your IgE level, which your doctor will measure with a simple blood test before treatment begins, and your body weight. Based on your dose, your doctor will also tell you if you will need 1, 2, or 3 injections per dose. If you need more than 1 injection, each will be given in a different place on your body.

Omalizumab is not a rescue medication and should not be used to treat sudden asthma attacks. It is not a substitute for the medicines you are already taking. Never suddenly stop taking, or change the dose of your inhaled steroids or any other asthma medicine you are taking unless your doctor tells you to do so.

This medicine should come with a Medication Guide. Read and follow these instructions carefully. Ask your doctor if you have any questions.

Precautions While Using This Medicine:

If you stop receiving omalizumab injections, your symptoms can be expected to return.

You may not see immediate improvement in your asthma after omalizumab treatment begins. It takes time for the medicine to work. It is important to continue your omalizumab injections until your doctor tells you otherwise.

This medicine may cause a serious type of allergic reaction called anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Tell your doctor right away if you have a rash, cough, chest tightness, shortness of breath, trouble breathing, wheezing, lightheadedness, dizziness, fainting, rapid or weak heartbeat, anxiety, flushing, itching, hives, feeling warm, swelling of the throat or tongue, throat tightness, hoarseness, or trouble swallowing after receiving this medicine.

A rare but serious condition called eosinophilia (increased white blood cells in the body) may occur while you are receiving this medication. A condition called vasculitis (inflammation of the blood vessels) may also be present. Eosinophilia can be serious and requires immediate medical attention. Tell your doctor right away if you have worsening lung symptoms, rash or bruising of the skin, fever, chest pain, or burning, tingling, or numbness in the hands and feet after receiving this medicine.

Your doctor will ask you to remain at the healthcare facility or clinic for at least two hours after each injection to watch for immediate side effects that can be serious.

Using this medicine may increase your risk of getting certain cancers or infections. Talk to your doctor if you have concerns about this risk.

Make sure any doctor or dentist who treats you knows that you are using this medicine. This medicine may affect the results of certain medical tests.

Side Effects of This Medicine:

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Rare
Cough
difficulty swallowing
dizziness
fast heartbeat
hives
itching
malignant tumor
puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
shortness of breath
skin rash
tightness in the chest
unusual tiredness or weakness
wheezing

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More Common
Bleeding
blistering
body aches or pain
burning
chills
cold or flu-like symptoms
coldness
congestion
discoloration of the skin
dryness or soreness of the throat
feeling of pressure
fever
headache
hoarseness
itching
leg pain
lumps
muscle or joint pain
numbness
pain
pain or tenderness around the eyes and cheekbones
redness
runny nose
scarring
shortness of breath or troubled breathing
sore throat
soreness
stinging
stuffy or runny nose
swelling
tender, swollen glands in the neck
tenderness
tingling
trouble with swallowing
ulceration
voice changes
warmth
Less common
Arm pain
blistering, crusting, irritation, itching, or reddening of the skin
body produces substance that can bind to drug making it less effective or cause side effects
cracked, dry, or scaly skin
earache
itching skin

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.


Last Updated: 4/4/2014

Copyright © 1984- Thomson Micromedex. All rights reserved.

Thomson & A.D.A.M