Legal since 2018, medical cannabis isn't a first-line treatment for arthritis....

https://oscar-wiki.win/index.php/Why_Do_Articles_Say_Medical_Cannabis_Is_One_Option_Among_Many_for_Arthritis%3F

Legal since 2018, medical cannabis isn't a first-line treatment for arthritis. You’ll usually need to have tried other options before a specialist assessment. Most access is currently through private clinics. Please talk to a qualified professional.