Answer
Yes. Beta blockade can mask some warning signs of hypoglycaemia, so people with unstable diabetes or recurrent low glucose require caution.
Sources for this answer
- Betoptic 0.25% w/v Eye Drops, Suspension — 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.