Answer
SonoVue (sulfur hexafluoride) contains less than 1 mmol sodium (23 mg) per dose and is essentially sodium-free.
Sources for this answer
- SonoVue 8 microlitres/ml, powder and solvent for dispersion for injectionBracco UK Limited · emc · SmPC §4.4 Special warnings and precautions for use · Version 16Document updated
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