Answer
The product information for Covonia Sore Throat Lemon Flavour Spray states that pharmaceutical incompatibilities are “Not applicable.”
Sources for this answer
- Covonia Sore Throat 0.2/0.05%w/v Oromucosal Spray Lemon FlavourThornton & Ross Ltd · emc · SmPC §6.2 Incompatibilities · Version 8Document updated
Sources checked