In 2018, UK cannabis law was updated through the Misuse of Drugs Regulations...

https://www.bright-bookmarks.win/the-uk-s-cannabis-laws-changed-in-2018-not-the-misuse-of-drugs-act-1971-but-the

In 2018, UK cannabis law was updated through the Misuse of Drugs Regulations 2001, not the Misuse of Drugs Act 1971. This change allows specialist doctors to prescribe cannabis-based medicines like Sativex and Epidyolex under Schedule 2