There is no government medical cannabis card in the UK. You must consult a...

https://www.mediafire.com/file/40goden7nw2z2a9/pdf-69153-74593.pdf/file

There is no government medical cannabis card in the UK. You must consult a specialist who reviews your medical records for a prescription. If prescribed, your use is lawful. Many carry an optional ID card as simple proof of their legal prescription.