Since 2018, the UK has regulated medical cannabis as a prescription-only...

https://jeffreyssupernews.image-perth.org/is-it-safe-to-buy-cannabis-online-in-the-uk-if-it-says-medical

Since 2018, the UK has regulated medical cannabis as a prescription-only medicine, available through specialist doctors. Guidance from the National Institute for Health and Care Excellence (NICE) supports evidence-based prescribing