Drug firms fear that being "liked" on Facebook could get them in trouble with the FDA. iStockphoto.com hide caption

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Why Drug Companies Are Shy About Sharing On Facebook

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Those who search for drug information online may be "drowned out in a sea of rogue results." iStockphoto.com hide caption

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A new drug called rivaroxaban may not require as many blood tests for patients with atrial fibrillation as the current drug on the market does. Libby Chapman/iStockphoto.com hide caption

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For Stroke Prevention, A New Alternative To Warfarin

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Antidepressants like these have become the second-most prescribed type of medicine in the U.S. Joe Raedle/Getty Images hide caption

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Johnson & Johnson is lowering the recommended top dose of Extra Strength Tylenol to reduce the risk of accidental overdose from acetaminophen. Paul Sakuma/AP hide caption

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Bottles of antiretroviral drug Truvada, a medicine used in trials that showed a reduction in transmission of HIV between heterosexuals. Justin Sullivan/Getty Images hide caption

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