There’s no official government medical cannabis card. Access is...

https://www.herald-dispatch.com/sponsored/how-to-get-a-medical-cannabis-card-in-the-uk-step-by-step/article_a7f9fcb2-55db-40ff-857f-db6b98c92a97.html

There’s no official government medical cannabis card. Access is prescription-first, following a specialist consultation and review of your medical records. Patients may then choose to carry a private ID card as optional proof of lawful use.