UK cannabis law changed in 2018, updating the Misuse of Drugs Regulations...

https://www.joint-bookmarks.win/the-uk-s-cannabis-laws-changed-in-2018-through-an-update-to-the-misuse-of-drugs

UK cannabis law changed in 2018, updating the Misuse of Drugs Regulations 2001—not the Misuse of Drugs Act 1971. This allowed specialist doctors to prescribe cannabis-based medicines, like Sativex and Epidyolex, under strict conditions