In 2018, the UK amended the Misuse of Drugs Regulations 2001, allowing...

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

In 2018, the UK amended the Misuse of Drugs Regulations 2001, allowing specialist doctors to prescribe cannabis-based medicines like Sativex and Epidyolex. However, cannabis remains a Class B drug for recreational use