Medical cannabis has been legal in the UK since 2018 under specialist...

https://medium.com/@robert-cox06/why-is-the-uk-so-strict-about-medical-cannabis-access-945c0fcd013a

Medical cannabis has been legal in the UK since 2018 under specialist oversight. It is not a first-line treatment and results vary by patient. While some report fewer night wake-ups, evidence is still evolving