Medical cannabis has been legal in the UK since 2018. 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. It isn’t a first-line treatment for arthritis; you’ll need a specialist assessment to see if it’s appropriate for your care. Most access is via private clinics. Speak with your GP to explore options.