Not for treatment of acute asthma exacerbation. Uncontrolled or worsened asthma after initiation of treatment. Not recommended to abruptly discontinue corticosteroids after Fasenra initiation. Discontinue use in the event of a hypersensitivity reaction. Patients w/ known helminth infections; treat preexisting helminth infections before initiation therapy. Discontinue use if helminthic infection occurs & patients do not respond to anthelmintics, while receiving Fasenra treatment. Avoid use during pregnancy. Lactation. Childn 5-11 yr.