Since the 2018 law change, medical cannabis is legal in the UK via specialist...

https://www.adirs-bookmarks.win/since-2018-medical-cannabis-has-been-legal-under-uk-specialists-if-you-are

Since the 2018 law change, medical cannabis is legal in the UK via specialist prescription. People often ask about eligibility, consults, and costs. While NHS access is limited, private clinics offer an alternative route to consider.