Navigating medical cannabis as an expat in the UK requires a specialist...

https://highstylife.com/how-to-request-your-medical-records-from-overseas-for-uk-clinics/

Navigating medical cannabis as an expat in the UK requires a specialist prescription, not a card. Private clinics handle this process differently than the NHS, so you must bring full medical records from home. Always check travel rules before you fly