The UK’s cannabis laws changed in 2018—not the Misuse of Drugs Act 1971 but the...

https://dlf-ne.org/what-international-treaties-affect-uk-cannabis-law/

The UK’s cannabis laws changed in 2018—not the Misuse of Drugs Act 1971 but the Misuse of Drugs Regulations 2001—allowing specialist doctors to prescribe certain cannabis-based medicines like Sativex and Epidyolex under Schedule 2