Since 2018, the UK has regulated medical cannabis as a prescription-only...

https://xeon-wiki.win/index.php/Why_Do_UK_Articles_Keep_Saying_%22Informational_Only%22_About_Medical_Cannabis%3F

Since 2018, the UK has regulated medical cannabis as a prescription-only medicine, available through specialist doctors. The National Institute for Health and Care Excellence (NICE) provides evidence-based guidance to support safe and appropriate use