Medical cannabis prescriptions in the UK start with a specialist assessment at...

https://brooksssuperop-ed.tearosediner.net/is-medical-cannabis-actually-legal-in-the-uk-or-is-it-still-basically-banned-1

Medical cannabis prescriptions in the UK start with a specialist assessment at a private clinic or, very rarely, through the NHS. If approved, your medicine comes from a regulated pharmacy to ensure quality and safety