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

https://wiki-mixer.win/index.php/How_UK_Technology_Appraisals_Affect_Access_to_Cannabidiol_with_Clobazam

Since cannabis was rescheduled in 2018, NHS doctors can technically prescribe medical cannabis—but only specialists may do so, and only for a few approved uses like nabilone for nausea, a spasticity spray trial