Medical cannabis has been legal in the UK since 2018, but it is not a...

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 is not a first-line treatment for arthritis. Access is primarily through private specialist clinics after other options have failed. If you’re interested, speak to your GP or specialist.