In the UK, drug driving laws apply not only to illegal drugs but also to prescription medication if it impairs driving ability.
It is illegal to drive in England, Scotland, and Wales if any drug — including prescribed medicines — affects your concentration, reaction time, or coordination.
Common risk medications include opioid painkillers, benzodiazepines, and some antidepressants. Drivers are not automatically breaking the law by taking them, but they must be safe to drive.
Penalties for drug driving can include a driving ban, heavy fines, prison, and a long-term criminal record.
Experts advise checking with a doctor or pharmacist before driving on new medication, as impairment is what determines legality.