Since 2018, specialist cannabis prescriptions have been legal in the UK....

https://wiki-planet.win/index.php/From_Counter-Culture_to_Clinical_Care:_How_We_Talk_About_Medical_Cannabis_in_the_UK

Since 2018, specialist cannabis prescriptions have been legal in the UK. Patients now access care through regulated clinics, using video consultations and tracked delivery for a secure, modern process that prioritises clinical oversight.