Answer
Yes, Covonia Sore Throat Menthol Flavour Spray is essentially sodium-free, containing less than 1 mmol sodium (23 mg) per five sprays (0.5 ml).
Sources for this answer
- Covonia Sore Throat 0.2%/0.05%w/v Oromucosal Spray Menthol FlavourThornton & Ross Ltd · emc · SmPC §4.4 Special warnings and precautions for use · Version 9Document updated
Sources checked