Precautions

Drug information provided by: Micromedex

It is very important that your doctor check your or your child's progress at regular visits. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to receive it. Blood and other exams may be needed to check for unwanted effects.

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 or your child 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 or your child 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 or your child to remain at the healthcare facility or clinic for at least 2 hours after each injection to watch for immediate side effects that can be serious.

Some patients who are receiving this medicine may have fever, rash, or muscle or joint pain. Tell your doctor right away if you or your child have any of these symptoms.

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