Answer
It can occasionally cause bronchospasm or worsen airway narrowing. New wheezing, chest tightness or marked breathlessness needs prompt medical assessment.
Sources for this answer
- Nebilet 5mg Tablets — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.