Medical cannabis has been legal in the UK since 2018 but is not a first-line...

https://smoothdecorator.com/why-do-headlines-make-uk-medical-cannabis-sound-easier-than-it-is/

Medical cannabis has been legal in the UK since 2018 but is not a first-line treatment. You need documentation of prior failed therapies to be considered. Most patients use private clinics, where a specialist assessment determines clinical suitability.