A girl with hepatitis C holds a medical report while being treated at a hospital in Hefei, China, in 2011. China has one of the greatest burdens of hepatitis C, but it's still not clear whether a deal for lower prices for a new drug from Gilead Sciences will apply there. Barcroft Media/Landov hide caption

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There's confusion about whether drugmakers can provide financial assistance to patients who buy health insurance on the exchanges. Roel Smart/iStockphoto 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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Ground zero for a new approach to prescription drug disposal. iStockphoto hide caption

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Timothy Webb and other advocates protest the cost of HIV drugs manufactured by the pharmaceutical company Gilead outside an AIDS conference in Atlanta in March. Gilead is making a new hepatitis C drug, Sovaldi. John Amis/AP Images for AIDS Healthcare Foundation hide caption

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Martine Rothblatt, CEO of United Therapeutics, is the namesake of the company's latest drug, Orenitram. Ron Levine/Getty Images hide caption

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Dr. Ernest Bagner III stands outside his former office tucked in the back corner of a strip mall in Hollywood, Calif., where he says he was the victim of Medicare fraud. Jonathan Alcorn/ProPublica hide caption

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British pharmaceuticals giant GlaxoSmithKline is pledging to revamp its relationships with doctors. Sang Tan/AP hide caption

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Yes, you could do this at home. Growing bacteria you find in a pile of dirt or a local pond might reveal the next big antibiotic. Charlotte Raymond/Science Source hide caption

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A colorized closeup of the hepatitis C virus. James Cavallini/Science Source hide caption

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