In 2018, UK cannabis law saw a specific update to the Misuse of Drugs...

https://atomic-wiki.win/index.php/Why_Do_People_Mix_Up_CBD_Products_with_Prescribed_Cannabis_Medicines%3F

In 2018, UK cannabis law saw a specific update to the Misuse of Drugs Regulations 2001—not the Misuse of Drugs Act 1971—allowing specialist doctors to prescribe cannabis-based medicines like Sativex and Epidyolex under Schedule 2