Medical cannabis users have a legal defence for the 2mcg/L THC limit, but...

https://www.social-bookmarkings.win/medical-cannabis-users-must-manage-more-than-just-the-2mcg-l-thc-limit-a

Medical cannabis users have a legal defence for the 2mcg/L THC limit, but legality doesn’t equal road safety. DVLA fitness standards still apply. Having a prescription isn't a free pass; you remain responsible for your driving. Stay informed and safe.