Medical cannabis has been legal in the UK since 2018. For runners seeking...

https://wiki-velo.win/index.php/What_Does_WADA_Say_About_THC_for_Competitive_Runners%3F_A_Practical_Guide

Medical cannabis has been legal in the UK since 2018. For runners seeking relief, access is managed through specialist private clinics. Eligibility depends on having a diagnosed condition that has not responded to two or more conventional treatments