Since becoming legal in the UK in 2018, medical cannabis is an option for some...

https://wiki-view.win/index.php/Do_You_Need_a_Specialist_for_a_Cannabis_Prescription_in_the_UK%3F

Since becoming legal in the UK in 2018, medical cannabis is an option for some chronic pain conditions, including arthritis. It is not a first-line treatment; it is typically considered only after standard therapies haven't provided enough relief