Since 2018, medical cannabis has been legal in the UK for specific health...

https://wiki-nest.win/index.php/Is_Medical_Cannabis_Prescribed_Casually_in_the_UK%3F_A_Reality_Check_for_Runners

Since 2018, medical cannabis has been legal in the UK for specific health conditions. For runners navigating persistent pain or injury, the process involves consultations with specialist private clinics