Prescribed cannabis doesn’t grant road immunity. You’re still bound by the...

https://evpowered.co.uk/feature/medical-cannabis-and-uk-driving-laws-what-ev-owners-must-know/

Prescribed cannabis doesn’t grant road immunity. You’re still bound by the 2mcg/L THC limit; a medical defence won't override DVLA fitness-to-drive rules. Remember: legality isn't responsibility. If you’re impaired, you’re liable