In 2018, UK cannabis law was updated through changes to the Misuse of Drugs...

https://qqpipi.com//index.php/Do_Scotland_and_Wales_Have_Different_Cannabis_Laws%3F

In 2018, UK cannabis law was updated through changes to the Misuse of Drugs Regulations 2001—not the Misuse of Drugs Act 1971. This allowed specialist doctors to prescribe certain cannabis-based medicines like Sativex and Epidyolex