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

https://wiki-planet.win/index.php/If_Products_Are_Unlicensed,_How_Is_Quality_Controlled_for_UK_Prescriptions%3F

In the UK, medical cannabis prescriptions start with a specialist assessment, usually at a private clinic since NHS prescriptions are rare. If approved, you get medicines from regulated pharmacies, ensuring safety