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

https://highstylife.com/how-do-i-find-a-legit-medical-cannabis-clinic-in-the-uk/

Since cannabis was rescheduled in 2018, NHS doctors can technically prescribe it, but only specialists can do so, and NHS support is usually limited to a few specific uses—like nabilone for nausea, a trial MS spasticity spray