Answer
Do not combine oral or nasal decongestants without professional advice because cardiovascular effects can increase.
Sources for this answer
- NHSNHS · NHS medicine guidance
- Nurofen Day & Night Cold & Flu 200mg/5mg 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.