Prescribed medical cannabis isn't a free pass. EV drivers must stay under the...

https://bizzmarkblog.com/the-motorists-guide-to-medical-cannabis-dvla-rules-section-5a-and-staying-legal/

Prescribed medical cannabis isn't a free pass. EV drivers must stay under the 2mcg/L THC limit and notify the DVLA if their condition impacts safety. A medical defence is no shield for impairment; legality doesn't replace responsibility