Answer
Its licence covers adolescents aged 12 years and over; it has not been studied for this indication in younger children.
Sources for this answer
- Histahive/Boots Fexofenadine hydrochloride/Well Pharmaceuticals Fexofenadine hydrochloride 180 mg Film-coated Tablets — 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.