There’s no official UK government medical cannabis card. You must consult a...

https://www.nav-bookmarks.win/in-the-uk-there-s-no-official-government-medical-cannabis-card-access-is

There’s no official UK government medical cannabis card. You must consult a specialist who reviews your medical records before issuing a prescription. While optional, some patients carry a private ID card as proof of their legal, prescribed medicine.