Legality isn’t an excuse for impairment. If you drive with medical cannabis,...

https://www.sierrabookmarking.win/prescribed-medical-cannabis-the-2-g-l-thc-limit-applies-to-everyone-while-a

Legality isn’t an excuse for impairment. If you drive with medical cannabis, you must meet DVLA fitness standards and stay under the 2mcg/L THC limit. A medical defence helps, but your primary duty is ensuring you are fully safe behind the wheel.