Medical cannabis has been legal in the UK since 2018, but it isn’t a first-line...

https://doctiplus.net/arthritis-and-medical-cannabis-can-uk-patients-get-a-prescription/

Medical cannabis has been legal in the UK since 2018, but it isn’t a first-line arthritis treatment. Access requires a specialist assessment, typically through private clinics, after other options are tried. It’s worth discussing with a pro.