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

https://angelowlnv711.yousher.com/why-is-clarity-more-helpful-than-optimism-with-uk-medical-cannabis

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.