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

https://papa-wiki.win/index.php/What_Is_Nationwide_Pharmacies_and_What_Do_They_Do%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