Since 2018, UK cannabis laws changed through updates to the Misuse of Drugs...

https://wiki-coast.win/index.php/Schedule_1_vs_Schedule_2_UK_Drugs:_What_Is_the_Difference%3F

Since 2018, UK cannabis laws changed through updates to the Misuse of Drugs Regulations 2001, not the 1971 Act. This allows specialist doctors to prescribe cannabis-based medicines like Sativex and Epidyolex under Schedule 2 rules