Answer
Check every ingredient. Do not combine it with another product containing paracetamol or a sympathomimetic decongestant, and avoid unnecessary extra caffeine.
Sources for this answer
- Benylin Cold & Flu Max Strength Capsules, hard — Current selected SmPCemc · Summary of Product Characteristics
- Lemsip Max Daytime Cold & Flu Relief — Current selected SmPCemc · Summary of Product Characteristics