Medical cannabis has been legal in the UK since November 2018 for specific...

https://www.bookmarkingvictor.win/since-medical-cannabis-became-legal-in-november-2018-the-rules-have-remained-1

Medical cannabis has been legal in the UK since November 2018 for specific conditions, but it is not a first-line treatment. You require a prescription from a specialist doctor, typically after other licensed options have failed to help