Medical cannabis has been legal in the UK since 2018, though it’s 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, though it’s not a first-line treatment for arthritis. Access requires a specialist assessment, commonly arranged through private clinics. If you're curious, speak to a qualified professional.