Since 2018, medical cannabis in the UK has become a regulated medicine...

https://bizzmarkblog.com/what-does-it-mean-when-a-medicine-is-rescheduled-in-the-uk/

Since 2018, medical cannabis in the UK has become a regulated medicine prescribed by specialists under clear guidelines. The National Institute for Health and Care Excellence (NICE) provides evidence-based advice to support safe use where appropriate