Answer
Do not take it if you are allergic to its ingredients or other Asteraceae plants, or have rare glucose-galactose malabsorption.
Sources for this answer
- Covonia Catarrh Relief Formula / Natures Aid Herbal Catarrh Relief Formula — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.