Since becoming legal in 2018, medical cannabis has been an option for some...

https://www.web-bookmarks.win/medical-cannabis-has-been-legal-in-the-uk-since-2018-but-it-s-not-a-first-line

Since becoming legal in 2018, medical cannabis has been an option for some chronic pain conditions, though it is never a first-line treatment. You’ll generally be expected to have tried standard arthritis therapies first