Your doctor will work out how much Omalizumab you or your child need, and how often you or your child will be given it. This depends on the body weight and the results of a blood test carried out before the start of the treatment to measure the amount of IgE in the blood.
Omalizumab will be given to you or your child by a doctor or nurse as an injection under the skin (subcutaneously).
You or your child may be given 1 to 4 injections at a time, either every two weeks, or every four weeks.
Ensure that you or your child continues to take the current medicines during Omalizumab treatment. Do not stop taking any medicines without talking to your doctor.
You may not see an immediate improvement in your or your child's asthma or CSU after beginning Omalizumab therapy. It usually takes between 12 and 16 weeks to have the full effect.
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