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

https://tiny-wiki.win/index.php/Can_you_get_medical_cannabis_on_the_NHS_for_arthritis%3F

Medical cannabis has been legal in the UK since 2018, but it isn’t a first-line arthritis treatment. Access requires specialist assessment, and because NHS availability is limited, many use private clinics. Speak to your GP about options.