Sarilumab, commercially known as Kevzara, is a potent medication used in the treatment of moderate to severe rheumatoid arthritis. It is a type of drug classified as an interleukin-6 (IL-6) receptor blocker and helps decrease inflammation by slowing the overactivity of the immune system. Kevzara is a holistic approach to easing the symptoms of arthritis and improving the quality of life for patients.