Answer
Drowsiness is not expected; the products have no or negligible influence on driving or using machines.
Sources for this answer
- Benylin Dry & Tickly Cough Syrup — Current selected SmPCemc · Summary of Product Characteristics
- Benylin Children's Dry Cough & Sore Throat Syrup — 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.