Since 2018, UK cannabis law has seen a key change: the Misuse of Drugs...

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

Since 2018, UK cannabis law has seen a key change: the Misuse of Drugs Regulations 2001 were updated to allow specialist doctors to prescribe certain cannabis-based medicines, like Sativex and Epidyolex