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

https://highstylife.com/why-do-product-prices-differ-for-medical-cannabis-in-the-uk-a-patient-liaisons-guide/

Since 2018, specialist-prescribed medical cannabis has been legal in the UK. This guide explains eligibility after standard treatments fail, what consultations involve, and the reality of private versus NHS access