Reports of hypersensitivity reactions (eg, urticaria, papular urticaria, rash) following Fasenra administration. Should not be used to treat acute asthma exacerbations. Seek medical advice if asthma remains uncontrolled or worsens after initiation of treatment. Abrupt discontinuation of corticosteroids after inititation of Fasenra therapy is not recommended. Patients w/ pre-existing helminth infections. Pregnancy & lactation. Childn ≤18 yr.