Medical cannabis became legal in the UK in 2018, though it is strictly reserved...

https://www.booknose.win/medical-cannabis-has-been-legal-in-the-uk-since-2018-yet-it-is-not-a

Medical cannabis became legal in the UK in 2018, though it is strictly reserved as a treatment option for those who have not found success with standard methods. It requires specialist oversight, and patient experiences are highly individual