There is no government medical cannabis card. Access is prescription-first,...

https://high-wiki.win/index.php/Are_UK_Medical_Cannabis_Consultations_a_Guarantee_You_Will_Be_Approved%3F

There is no government medical cannabis card. Access is prescription-first, requiring a specialist consultation and your medical records. Some clinics offer an optional card as proof of your lawful prescription, though it is not an official document.