(NBC) - Amid public outcry, Congress is demanding answers about the skyrocketing costs of EpiPen.
EpiPens are the devices that can prevent potentially fatal anaphylactic shock, often in children with allergies.
With a quick stab to the thigh, the lifesaving injection reduces swelling, closing of the airways and other symptoms of a severe allergic reaction.
Now, senators are sending letters to Mylan -- the maker of EpiPen -- asking the company to justify the increase.
Officials say the cost has increased more than 400 percent since 2008.
Congress says they're concerned parents can't afford the pens for children as they're heading back to school.
Mylan has declined to comment on the price hike, instead blaming high-deductible health plans that require consumers to pay more out of pocket for many drugs.
A petition by Congress has collected more than 48,000 signatures.
Courtesy: NBC News Channel
