It's not nearly the difference that it would appear ... Think about the per capita incomes of both countries and you'll find the drug is prohibitively expensive

It's not nearly the difference that it would appear ... Think about the per capita incomes of both countries and you'll find the drug is prohibitively expensive in both countries. If you look at it from the drug companies perspective; it's a case of maximizing their profits in both markets and competition is just one factor in doing so.