Johnson & Johnson CEO William Weldon (left) and Colleen Goggins, chairman of the company's consumer unit, (right) testify at a House Oversight and Government Reform Committee hearing Thursday. Mark Wilson/Getty Images hide caption

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European regulators have decided to take Avandia off the market. FDA will allow further sales, with heavy restrictions. Justin Sullivan/Getty Images hide caption

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Prescription drug use is up in the last 10 years, with about 48 percent of Americans now taking at least one medicine. Greg Martin/iStockphoto.com hide caption

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