I take it he doesn’t use a pump? Those tend to be fast-acting only; at least I don’t think my partner has injected a single unit of anything else since he was in high school.
As for prices, a 10ml glass of 100U/ml is regulated to at most $28 here, and there is a system where certain drugs and equipment (like, say, insulin and pump consumables) count against a maximum yearly payment. For things on that list you never pay more than 39% of the sticker price, the government subsidizes the rest; never more than $60 per drug store visit, and when your yearly total passes $260 the rest will be refunded (early next year).
