Since 2018, the Misuse of Drugs Regulations 2001—not the 1971 Act—allow...

https://www.bookmark-fuel.win/in-2018-changes-to-the-misuse-of-drugs-regulations-2001-allowed-specialist

Since 2018, the Misuse of Drugs Regulations 2001—not the 1971 Act—allow specialist doctors in the UK to prescribe certain cannabis-based medicines, like Sativex and Epidyolex. However, cannabis itself remains a Class B drug, keeping most uses illegal