Medical cannabis has been legal in the UK since November 2018, but it must be...

https://fair-wiki.win/index.php/Is_Medical_Cannabis_Used_for_Sleep_Problems_Linked_to_Anxiety_in_the_UK%3F

Medical cannabis has been legal in the UK since November 2018, but it must be prescribed by a specialist consultant. Typically, it is only considered after standard treatments have proven ineffective for your condition