Got put onto this through someone. I have a friend who has it on prescription, I'm quite jealous.
From reading up on it through the website and discussions with one of the clinics. They are able to prescribe it if you "have exhausted treatments through your GP" once they've done that they go for a consultation and prescription. All the info is on the site and the clinics sites. I had no idea they can prescribe it for such a multitude of illnesses: Anxiety, insomnia, epilepsy, MS etc (there are quite a few). I thought it was mainly only cancer patients, until a while ago)
Anyways the website for UK residents only.
https://medbud.wiki/clinics/