MedicationBrussels
An introduction to the traffic rules and road signs of Brussels. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.
For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.
256. Medication
Medication can affect driving ability even when it is legally prescribed or available without a prescription. Some medicines can cause drowsiness, dizziness, blurred vision, reduced concentration, slower reactions or impaired coordination and judgement. Drivers should read the patient information leaflet, follow the prescribed dose and ask a doctor or pharmacist if they are unsure whether it is safe to drive. Extra care is needed when starting a new medicine, changing the dose or combining several medicines or medication with alcohol.
Can medication affect your fitness to drive in Belgium?
Yes. Belgian driving-fitness standards recognise that certain medicines can increase the risk of an accident. A driver must remain medically fit and capable of driving safely.
How can you check whether a medicine affects driving in Belgium?
Read the patient information leaflet, particularly the section on driving and using machines. The Belgian medicines authority also recommends asking your doctor or pharmacist when you are unsure.
Can medicine bought without a prescription affect driving in Belgium?
Yes. A medicine does not have to require a prescription to affect driving. Some antihistamines, cough medicines and other commonly used medicines can reduce alertness or reaction ability.

Traffic rules
Brussels