<prompt> Anti-CD 25 monoclonal antibody used in prophylaxis of acute organ rejection in adult patients isBasilizimabMuromonabEfalizumabEculizumab  <response>: Ref. KDT. Page. 871-72Basiliximab exhibits high affinity towards IL-2 receptor, inhibiting it.Anti- CD-25 antibodyHigh affinity for IL-2 receptorShort plasma half life - 1 weekUseful in preventing transplant rejection reactions.Adverse effects - Anaphylactic reactions opportunistic infections. Muromonab - CD3 is an immunosuppressant drug given to reduce acute rejection in patients with organ transplantEfalizumab - It is a monoclonal antibody that binds to CD11a, a cellsurface protein that has a key role in the pathological immune response in the skin disorder psoriasis.Eculizumab used in treatment of PNH 