Medical cannabis became legal in the UK in 2018, but it remains a last-resort...

https://www.start-bookmarks.win/since-2018-medical-cannabis-has-been-legal-in-the-uk-via-specialist

Medical cannabis became legal in the UK in 2018, but it remains a last-resort option. You need a prescription from a specialist, not a GP, and usually evidence that other treatments have failed to help