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

https://wiki-quicky.win/index.php/Is_Herbal_Cannabis_Still_Schedule_1_in_the_UK%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