Four million Americans carry EpiPens in their purses. The small syringes filled with epinephrine are prescribed to combat a whole host of allergies - from nuts to medication. One hit - injected into the sufferer's thigh - can save someone from a potentially-fatal anaphylactic reaction. EpiPens have made headlines in recent days after the manufacturer, Mylan, hiked the price from $94 for two hits to $600. But why? Here, medical law expert Timothy Holbrook, a professor at Emory University, explains the politics that determine our healthcare. Original Article: http://www.dailymail.co.uk/health/art... Original Video: http://www.dailymail.co.uk/video/heal... Daily Mail Facebook: / dailymail Daily Mail IG: / dailymail Daily Mail Snap: / 8392137033 Daily Mail Twitter: / mailonline Daily Mail Pinterest: http://pinterest.co.uk/dailymail Daily Mail Google+: https://plus.google.com/+DailyMail/posts Get the free Daily Mail mobile app: http://dailymail.co.uk/mobile