Since 2018, medical cannabis has been a legal treatment option in the UK,...

https://www.bookmark-help.win/medical-cannabis-has-been-legal-since-2018-but-isn-t-a-first-line-treatment

Since 2018, medical cannabis has been a legal treatment option in the UK, though it is not a first-line therapy for arthritis. Access requires a specialist consultant assessment, and most patients currently source it via private clinics