It is a colourless to slightly yellow liquid.
The active substance is satralizumab. Each pre-filled syringe contains 120 mg of satralizumab in 1 mL.
Enspryng contains the active substance satralizumab. It is a type of protein called a monoclonal antibody. Monoclonal antibodies are designed to recognise and attach to a specific substance in the body.
Excipients/Inactive Ingredients: The other ingredients are histidine, aspartic acid, arginine, poloxamer 188, water for injections.