Since 2018, medical cannabis has been legal in the UK for specific conditions,...

https://www.beacon-bookmarks.win/medical-cannabis-has-been-legal-in-the-uk-since-2018-but-it-remains-a-strictly

Since 2018, medical cannabis has been legal in the UK for specific conditions, though it is never a first-line treatment. Because it requires specialist oversight, it is only considered when other routes have been exhausted