Since 2018, specialist doctors can legally prescribe cannabis in the UK....

https://www.toro-bookmarks.win/since-2018-uk-patients-have-been-able-to-access-medical-cannabis-through

Since 2018, specialist doctors can legally prescribe cannabis in the UK. Patients now use digital onboarding and telehealth consults to access care. Once approved, clinicians issue e-prescriptions for tracked delivery to your home.