There is no official UK government cannabis card. Access is strictly...

https://magic-wiki.win/index.php/If_I_Have_a_Prescription,_What_Rules_Do_I_Need_to_Follow_to_Stay_Legal%3F

There is no official UK government cannabis card. Access is strictly prescription-first; you will need a specialist consultation and your medical records. While private clinics may offer a patient card, it remains an optional way to prove your lawful use.