In 2018, changes to the Misuse of Drugs Regulations 2001 allowed specialist...

https://www.tntmagazine.com/leisure-entertainment/leisure/why-is-cannabis-still-illegal-in-the-uk-the-history-behind-medical-cannabis-law/

In 2018, changes to the Misuse of Drugs Regulations 2001 allowed specialist doctors in the UK to prescribe cannabis-based medicines like Sativex and Epidyolex under Schedule 2. However, cannabis remains a Class B drug for recreational use