Fasenra (benralizumab) is a monoclonal antibody that affects the actions of the body's immune system. Benralizumab works by reducing levels of eosinophils, a certain type of white blood cell that may contribute to the symptoms of asthma.
Fasenra injection is a prescription medicine used together with other asthma medicines to help control severe asthma in adults and children who are at least 12 years old.
Fasenra is for people whose asthma is not well controlled with other medications.
