Used in the treatment of autoimmune and inflammatory diseases, particularly rheumatoid arthritis. It targets the interleukin-6 receptor, blocking IL-6 signaling, which plays a key role in driving inflammation, joint damage, and systemic symptoms. By inhibiting this pathway, it helps reduce disease activity, slow progression of joint destruction, and improve physical function in patients. Also investigated for use in other conditions involving dysregulated IL-6 activity, such as cytokine release syndrome and certain chronic inflammatory disorders.