Since 2018, medical cannabis is legal but not a first-line treatment; you must...

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

Since 2018, medical cannabis is legal but not a first-line treatment; you must have tried standard arthritis therapies first. Access requires a specialist assessment, usually via private clinics. Always speak to your GP to discuss your options.