Since 2018, specialist-prescribed medical cannabis has been legal in the UK....

https://wiki-coast.win/index.php/The_Great_Wellness_Confusion:_Distinguishing_Between_CBD_Products_and_Regulated_Cannabis_Medicine

Since 2018, specialist-prescribed medical cannabis has been legal in the UK. Modern digital clinics now provide a regulated pathway to access, involving formal clinical assessments via video call and secure, tracked delivery for eligible patients.