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

https://suvzhinterworld.gumroad.com/p/what-does-it-mean-when-people-say-cannabis-used-to-be-about-identity

Since 2018, the UK has regulated medical cannabis as a prescription-only medicine, available through specialist doctors. Guidance from NICE supports evidence-based use in specific conditions, aiming to ensure patient safety and consistent care