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

https://www.mapleprimes.com/users/keith-hall05

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