UK cannabis law saw a key update in 2018 with changes to the Misuse of Drugs...

https://claytonnujn348.timeforchangecounselling.com/what-international-treaties-affect-uk-cannabis-law

UK cannabis law saw a key update in 2018 with changes 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