UK cannabis law changed in 2018 through an update to the Misuse of Drugs...

https://page-wiki.win/index.php/Misuse_of_Drugs_Act_1971_vs_Misuse_of_Drugs_Regulations_2001:_What%E2%80%99s_the_Difference%3F

UK cannabis law changed in 2018 through an update to the Misuse of Drugs Regulations 2001—not the Misuse of Drugs Act 1971. This allowed specialist doctors to prescribe cannabis-based medicines like Sativex and Epidyolex under Schedule 2