Since 2018, the UK has allowed medical cannabis to be prescribed by specialists...

https://research-wiki.win/index.php/What_Role_Did_Families_of_Sick_Children_Play_in_the_UK_Debate_on_Cannabis%3F

Since 2018, the UK has allowed medical cannabis to be prescribed by specialists under regulated guidelines. The National Institute for Health and Care Excellence (NICE) provides evidence-based recommendations to support safe use