Answer
Covonia Chesty Cough Mixture Mentholated contains less than 1 mmol sodium (23 mg) per 5 ml dose and is essentially sodium-free.
Sources for this answer
- Covonia Chesty Cough Mixture MentholatedThornton & Ross Ltd · emc · SmPC §4.4 Special warnings and precautions for use · Version 4Document updated
Sources checked