In the UK, medical cannabis prescriptions start with a specialist assessment,...

https://averyssuperthoughts.theburnward.com/is-medical-cannabis-in-the-uk-treated-like-a-one-off-purchase-or-ongoing-care

In the UK, medical cannabis prescriptions start with a specialist assessment, usually at a private clinic, since NHS prescriptions are rare and strictly regulated. If approved, medicine is supplied through licensed pharmacies to ensure safety and quality