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

https://weekly-wiki.win/index.php/Is_Medical_Cannabis_Cheaper_on_the_NHS_Than_Private_Clinics%3F_A_Practical_Guide_to_Access

Since 2018, specialist-prescribed medical cannabis has been legal in the UK. This guide explores eligibility after standard treatments, what consultations involve, and why NHS access is limited