Answer
Yes. It can interact with anaesthetic medicines and contribute to excessive slowing of the heart or low blood pressure, so peri-operative management must be planned.
Sources for this answer
- NHSNHS · NHS medicine guidance
- Propranolol Rosemont 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.