Makes it easy for Big Pharma too.
How?
From the FAQ link above:
Who can see my Summary Care Record?
Only healthcare staff involved in supporting or providing your care can see your Summary Care Record. These:
need to be directly involved in caring for you;
need to have an NHS Smartcard with a chip and passcode (like a bank card and PIN);
will only see the information they need to do their job;
and should have their details recorded.
Healthcare staff will ask your permission every time they need to look at your Summary Care Record. If they cannot ask you, for example if you are unconscious, they may look at your Summary Care Record without asking you. If they do this, they will make a note on your record to say why they have done so.