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

https://www.random-bookmarks.win/in-2018-changes-to-the-misuse-of-drugs-regulations-2001-allowed-certain

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