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Effect of low blood sugar on driving ability

Low blood sugar reduces the brain’s ability to make quick decisions, coordinate and pay attention.

Insulin therapy and medicines that increase the secretion of insulin in a formulaic fashion may drop the blood sugar level too low. These medicines include glimepiride and glinides.

Low blood sugar i.e. hypoglycaemia causes a traffic hazard. Low blood sugar has an effect on attention, coordination and judgement. In the worst-case scenario, low blood sugar can lead to an inability to act and a reduced level or loss of consciousness.

If you have diabetes, in regards to driving health, it is essential that your low bloodd sugar symptoms are intact and that you act based on the symptoms and monitor your blood sugar regularly and adequately from the viewpoint of traffic safety.

If you have had insulin-dependent diabetes for a longer period of time, the hypoglycaemia symptoms may change or decrease. Recurring hypoglycaemia can also reduce the symptoms. If this is the case, you should use glucose sensing, if possible. It is important to recognise risk situations related to low blood sugar.

It is the driver’s responsibility to only drive if they feel able to do so. Doctor and diabetes care provider support and monitor driving health of persons with diabetes through guidance and appropriate treatment.

Updated 30.9.2023