A customer shops for produce at the Hunger Mountain Co-op in April 2013 in Montpelier, Vt. More than a dozen food cooperatives supported the bill that would require the labeling of genetically modified foods. Toby Talbot/AP hide caption

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A woman tries electronic cigarettes at a store in Miami. Joe Raedle/Getty Images hide caption

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Morphine and oxycodone (the active ingredient in Oxycontin) are strong narcotic pain relievers on their own. Moxduo, a drug now up for FDA approval, would combine morphine and oxycodone in a single capsule. Rich Pedroncelli/AP hide caption

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The proposed Nutrition Facts label (right) has a few subtle differences from the current label, including bolder calorie counts and added sugar information. Food and Drug Administration hide caption

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Up till now, all babies have had two genetic parents. That could soon change. Klöpper & Eisenschmidt GbR/iStockphoto hide caption

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Blair Roberts, a 22-year-old sales associate at Colorado E-Smokes, "vapes" with an electronic cigarette in the Aurora, Colo., store. In the absence of federal rules, Colorado is among states that considered its own age requirements for the nicotine-delivery devices. Ed Andrieski/AP hide caption

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The prescription painkiller sold under the brand-name Vicodin contains hydrocodone bitartrate and acetaminophen. To reduce the risk of liver damage, the Food and Drug Administration is moving to limit the amount of acetaminophen allowed in prescription medicines. Toby Talbot/AP hide caption

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Dietary supplements are generally defined as vitamins, minerals, herbs and extracts. They're regulated as a unique category of food by the Food and Drug Administration. iStockphoto.com hide caption

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Flemming Ornskov, CEO of Shire, says the company's offer for ViroPharma is part of a broader push into orphan drugs. Bloomberg via Getty Images hide caption

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Hydrocodone, sold as Vicodin and other brand names, may face tighter restrictions on prescribing and use. Toby Talbot/AP hide caption

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