My dog Clancy has dry eye syndrome, or keraconjunctivitis sicca. To make a long story short, he had an appointment 8/19/09 and the vet who had been treating him wasn't there (she said she would be, which was why I scheduled it for that time), so another one saw him, and recommended an ointment to complement the one being used which, by her own admission, was working great.
When I went to check out, I asked the price of this ointment, which was packaged as a prescription in a Blistex size tube. I was told $26, so I asked to see it. Turns out it was 15% mineral oil and 85% petrolatum, which you know as Vaseline. No inert ingredients, nothing. When I voiced my displeasure to the clerk, she replied, correctly so, that she doesn't set the prices. So I asked to see the vet again, the clerk checked, and I was told she was busy. So of course I tossed the box on the counter, told her that the price was "unethical," and checked out.
So watch out for these kinds of ripoffs. This tube was about .25 oz, making their price $104/oz. I figure that this is about a 10,000% profit margin.