Since 2018, the UK has allowed specialist doctors to prescribe medical cannabis...

https://www.flushthefashion.com/health/from-counterculture-to-clinic-how-medical-cannabis-shed-its-image-in-the-uk/

Since 2018, the UK has allowed specialist doctors to prescribe medical cannabis under regulated conditions. The National Institute for Health and Care Excellence (NICE) provides evidence-based guidance to support treatment decisions