In 2018, UK law changed the Misuse of Drugs Regulations 2001 to allow...

https://bizzmarkblog.com/is-cannabis-decriminalised-anywhere-in-the-uk/

In 2018, UK law changed the Misuse of Drugs Regulations 2001 to allow specialist doctors to prescribe certain cannabis-based medicines, like Sativex and Epidyolex. Yet, recreational cannabis remains a Class B drug