Answer
The trace gluten level is considered gluten-free and unlikely to cause problems in coeliac disease. Do not use it if you have wheat allergy.
Sources for this answer
- Strepsils Sore Throat and Cough Lozenges — Current selected SmPCemc · Summary of Product Characteristics
- Strepsils Sore Throat and Blocked Nose — Current selected SmPCemc · Summary of Product Characteristics