Since 2018, medical cannabis has been legal in the UK via specialist...
https://foxtrot-wiki.win/index.php/What_is_the_difference_between_eligibility_and_being_prescribed_medical_cannabis_in_the_UK%3F
Since 2018, medical cannabis has been legal in the UK via specialist prescription, usually after other treatments fail. NHS access is rare, so most patients use private clinics. It’s a complex system, so do your research before booking an appointment.