Answer
Each 5 ml vial of Spinraza (nusinersen sodium) contains less than 1 mmol sodium (23 mg) and less than 1 mmol potassium (39 mg), making it essentially sodium-free and potassium-free.
Sources for this answer
- Spinraza 12 mg solution for injectionBiogen Idec Ltd · emc · SmPC §4.4 Special warnings and precautions for use · Version 17Document updated
Sources checked