[1123581321]

Responding to your main point: a drug mis-interaction is not really something people consider minor, and interactions are possible in every area of medicine, not just diabetes. While it's true that fatally low blood sugar is more likely for a diabetic than worst case scenarios are for some other diseases, developing a new diabetic treatment isn't riskier than developing insulin. Everyone involved in the drug pipeline knows what hypoglycemia is and that it can happen unpredictably.

I am concerned what might happen if the state of diabetes treatment advances and medical staff do not become significantly more educated, though.

Responses to the anecdote:

You didn't mention giving your father sugar. For others reading: tilt the patient so you can put things in the side of their mouth, and put in some sugar or soda (or something else that uses sweeteners with carbs/calories and is not fatty/fibery.)

Options for payment in this case were: negotiate discount or write-off with hospital, if insurance non-coverage was due to out-of-network negotiate insurance contribution as paid in full, to seek a medical malpractice settlement. But I understand how it is hard to get these kinds of things done, especially as a third party.