Omalizumab is a drug used in the treatment of allergic asthma belonging to the class of anti-IgE monoclonal antibodies (ie, anti-immunoglobulin E).
Omalizumab is generally used in patients whose asthma is not adequately controlled by drugs such as inhaled steroids or inhaled β2-adrenergic agonists (such as salbutamol, formoterol, indacaterol and salmeterol).