What is "daclizumab"

n. A humanized monoclonal antibody used to prevent rejection in organ transplantation, especially in kidney transplants.

Daclizumab (trade name Zinbryta) is a therapeutic humanized monoclonal antibody used for the treatment of adults with relapsing forms of multiple sclerosis. Daclizumab works by binding to CD25, the alpha subunit of the IL-2 receptor of T cells.

It was formerly marketed under the trade name Zenapax to prevent acute rejection in people with kidney transplants along with cyclosporine and corticosteroids but marketing of the drug for that purpose was discontinued in 2009 due to lack of market demand.