Answer
Age suitability depends on the formulation. The selected mouthwash is for people aged 13 years and over, while the spray has separate paediatric instructions. Check the exact product with a pharmacist.
Sources for this answer
- Benzydamine Hydrochloride 0.15 % w/v Oromucosal Sprayemc · SmPC Current selected SmPC · Version 1
- Benzydamine 0.15% w/v Mouthwash