Answer
The selected product is licensed for chesty cough and catarrh, not dry cough. Ask a pharmacist if you are unsure what type of cough you have.
Sources for this answer
- Lemsip Cough for Mucus Cough & Catarrh 100mg/2.5mg/5ml Oral Solution — 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.