Found this for you:
"According to NIH [National Institutes of Health], taxpayer-funded scientists conducted 55 percent of the research projects that led to the discovery and development of the top five selling drugs in 1995." "Rx R&D Myths: The Case Against the Drug Industry's R&D 'Scare Card,'" Public Citizen report, July 23, 2001.
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In other words, you the taxpayer pay for much of the R&D while the pharmaceutical companies then horde the trademarks and market the products under their own brands. You pay to make the product, they profit from it. You also forfeit your right, thanks to Medicare, to have your gov't negotiate the prices of the drugs they buy for you. Who needs lube, eh?