Since 2018, UK cannabis law has allowed certain medical uses under the Misuse...

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

Since 2018, UK cannabis law has allowed certain medical uses under the Misuse of Drugs Regulations 2001, not the 1971 Act. Specialist doctors can prescribe cannabis-based medicines like Sativex and Epidyolex, which remain Class B drugs otherwise