Medical cannabis has been legal in the UK since 2018 for specific health...

https://foxtrot-wiki.win/index.php/Is_Medical_Cannabis_Actually_Legal_in_the_UK_or_is_it_Still_a_Grey_Area%3F

Medical cannabis has been legal in the UK since 2018 for specific health conditions. For runners exploring this option, the route involves consultations at specialist private clinics