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

https://www.bookmark-xray.win/since-2018-the-uk-has-allowed-medical-cannabis-to-be-prescribed-by-specialists-3

Since 2018, the UK has regulated medical cannabis as a prescription-only medicine, available through specialist doctors following clear guidance from NICE. This approach aims to ensure safe, evidence-based use within the healthcare system