Kineret (anakinra) is a FDA-approved drug indicated for rheumatoid arthritis. Anakinra is a recombinant, nonglycosylated form of the human interleukin-1 receptor antagonist (IL-1Ra). Anakinra blocks the biologic activity of IL -1 by competitively inhibiting IL-1 binding to the interleukin-1 type I receptor (IL-1RI), which is expressed in a wide variety of tissues and organs. IL-1 production is induced in response to inflammatory stimuli and mediates various physiologic effects including inflammatory and immunological responses.