Medical cannabis has been legal in the UK via private clinics since 2018....

https://www.bookmark-jungle.win/medical-cannabis-has-been-legal-in-the-uk-since-2018-and-is-accessed-through

Medical cannabis has been legal in the UK via private clinics since 2018. Eligibility depends on your specific condition and prior treatments. If you are a competitive athlete, note that WADA still prohibits THC during in-competition periods.