Since cannabis was rescheduled in 2018, NHS prescribing is technically allowed...

https://www.hotel-bookmarkings.win/since-medical-cannabis-was-rescheduled-in-2018-nhs-prescribing-is-technically-2

Since cannabis was rescheduled in 2018, NHS prescribing is technically allowed but remains rare, limited to specialist doctors and only for a few conditions—like nabilone for nausea, MS spasticity spray trials