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NMOSD is a disease of the central nervous system that mainly affects the optic nerves and spinal cord. It is caused by the immune system (the body's defences) working incorrectly and attacking nerves in the body.
The damage to the optic nerves causes swelling, leading to pain and loss of sight.
The damage to the spinal cord causes weakness or loss of movement in the legs or arms, loss of feeling, and problems with bladder and bowel function.
In an attack of NMOSD, there is swelling in the nervous system. This also happens when the disease comes back (relapse). The swelling causes new symptoms or a return of previous symptoms.
Enspryng blocks the action of a protein called interleukin-6 (IL-6), which is involved in the processes that lead to damage and swelling in the nervous system. By blocking its effects, Enspryng reduces the risk of a relapse or attack of NMOSD.
