Prescribed cannabis doesn’t grant immunity. The 2mcg/L limit remains, and a...

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

Prescribed cannabis doesn’t grant immunity. The 2mcg/L limit remains, and a medical defence isn't an automatic pass for DVLA fitness-to-drive. Being legal doesn't replace personal responsibility behind the wheel