Since cannabis was rescheduled in 2018, NHS doctors can prescribe medical...

https://vergemagazine.co.uk/can-you-get-medical-cannabis-on-the-nhs-a-guide-to-the-uk-system/

Since cannabis was rescheduled in 2018, NHS doctors can prescribe medical cannabis—but only specialists, and only for a few conditions like MS spasticity, certain rare epilepsies (with cannabidiol and clobazam), or using nabilone