UK cannabis laws were adjusted in 2018 through the Misuse of Drugs Regulations...

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

UK cannabis laws were adjusted in 2018 through the Misuse of Drugs Regulations 2001, not the Misuse of Drugs Act 1971. This change made some cannabis-based medicines, like Sativex and Epidyolex, available on prescription but only from specialist doctors