Since 2018, medical cannabis has been legal in the UK when prescribed by...

https://telegra.ph/The-Competitive-Runners-Guide-to-Medical-Cannabis-Navigating-Legality-and-Anti-Doping-04-28

Since 2018, medical cannabis has been legal in the UK when prescribed by specialist private clinics. If you’re a runner considering this, eligibility depends on having a specific diagnosis and having tried conventional treatments first