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

https://wiki-fusion.win/index.php/Can_I_Drive_in_the_UK_if_I%E2%80%99m_Prescribed_Medical_Cannabis%3F_A_Guide_for_Runners

Medical cannabis has been legal in the UK since 2018 for specific clinical needs. Access is managed through specialist private clinics rather than standard GPs