Answer
Covonia Medicated Sore Throat 5mg/1mg Lemon Flavour lozenges have a shelf life of 2 years.
Sources for this answer
- Covonia Medicated Sore Throat 5mg/1mg Lozenges Lemon FlavourThornton & Ross Ltd · emc · SmPC §6.3 Shelf life · Version 5Document updated
Sources checked