Mylan, the maker of EpiPen, says it will sell a generic version for $300 for a two-pack, a price that consumer advocates say is still too high. The device is used to treat severe allergic reactions. Daniel Acker/Bloomberg via Getty Images hide caption

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In states that made medical marijuana legal, prescriptions for a range of drugs covered by Medicare dropped. Chris Hondros/Getty Images hide caption

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A single modest meal for a doctor was associated with a higher likelihood he or she would prescribe Crestor, a cholesterol drug, instead of a generic. Daniel Acker/Bloomberg via Getty Images hide caption

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A federal judge has agreed to end a trial of FedEx which started Monday in San Francisco. The firm had been accused of shipping packages from illegal online pharmacies. Prosecutors did not specify why they abruptly moved to drop the case. Seth Perlman/AP hide caption

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This prototype built by MIT researchers can be reconfigured to manufacture different types of pharmaceuticals. Courtesy of the Allan Myerson lab hide caption

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Inventing A Machine That Spits Out Drugs In A Whole New Way

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Putting experimental drugs to the test can be a way of life. Glow Wellness/Glow RM/Getty Images hide caption

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Professional 'Guinea Pigs' Can Make A Living Testing Drugs

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Stephane Schubhan, one of six men hospitalized after the clinical trial, still suffers from neurological damage. Jean-Francois Monier/AFP/Getty Images hide caption

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Opana pills, seen in 2010, before Endo Pharmaceuticals changed the formula in a move intended to deter abuse. Tom Walker/Flickr hide caption

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How A Painkiller Designed To Deter Abuse Helped Spark An HIV Outbreak

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"Everyone that's in there right now has probably done it," Clyde Polly says about Opana injections at his home. Seth Herald for NPR hide caption

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Inside A Small Brick House At The Heart Of Indiana's Opioid Crisis

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Harvoni can cure hepatitis C, but the drug costs a fortune. Are loans to patients the answer? Lloyd Fox/Baltimore Sun/TNS via Getty Images hide caption

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Valeant Pharmaceuticals has been the focus of a congressional investigation into high drug prices. . Michael Nagle/Bloomberg via Getty Images hide caption

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