Medical cannabis became legal in the UK in 2018. Access requires a specialist...

https://wiki-neon.win/index.php/What_Is_the_Role_of_Follow-Up_Monitoring_in_UK_Medical_Cannabis_Care%3F

Medical cannabis became legal in the UK in 2018. Access requires a specialist assessment and proof of prior treatments that failed to manage your condition. Most patients now use private clinics for this process. It is a clinical, evidence-based route.