This year's worldwide recall of defective EpiPens has put people with severe allergies on alert. And now allergy sufferers have even more reasons to worry. Faulty EpiPens have been cited in the deaths of at least seven Americans so far this year, according to FDA reports that have only been made public this week.

EpiPen manufacturer Mylan has been involved in a contentious legal case over its overcharging of the US government. On Thursday, the US Department of Justice finalised its settlement with Mylan, which will pay $US465 ($589) million in penalties. But many believe that's not enough.

Mylan is one of the most loathsome companies on Earth. Usually, they are hated for charging people with life-threatening allergies extortionate amounts of money for the only drug on the market that can help them. But a new report points out that there are many other reasons to hate the company. Namely, contributing to air pollution while they sell drugs to help people with respiratory problems.

For people with severe allergies, having an EpiPen can mean the difference between life and death. Because there's no generic alternative, EpiPen manufacturer Mylan just keeps jacking up the price and ripping off patients. They also seem to have ripped off the US government. Today, a probe by the US Department of Health and Human Services concluded that the company actually stiffed American taxpayers for three times more than was previously believed.

The stock price of Mylan is soaring, but the pharmaceutical company might not be out of the woods yet. After a winter of bad headlines, Congressional testimony and agreements to pay back millions to the US government, the Pentagon is looking at how much Mylan has been overcharging since 2008.

Mylan, the drug company that makes EpiPens, has been overcharging Medicare and Medicaid in the US for years. But today the pharmaceutical company had to finally pay the piper. In a deal announced by the notorious price-gougers, Mylan will hand over $US465 million ($611.8 million) to the US government, but it won't have to admit any wrongdoing.

The US government spent over $US1.3 billion ($1.7 billion) on EpiPens from 2011 to 2015. But Mylan, the makers of EpiPen, has been overcharging the government for the life-saving allergy medication by misclassifying it as a generic, rather than a name brand drug. If you don't know whether to laugh or cry at this point, you're not alone.

Two weeks ago, Mylan CEO Heather Bresch got up in front of Congress and lied about how much profit the pharmaceutical company makes on the EpiPen. And Congress is pissed.

Last week, Heather Bresch, the CEO of Mylan Pharmaceuticals, testified in front of the US Congress about why the company has raised the price of EpiPen from roughly $US57 ($75) in 2007 to $US600 ($785) in the US today. (EpiPens are subsidised in Australia and typically under $100). Under intense questioning, she claimed that the company only makes about $US100 ($131) per two-pack of EpiPens. Today the company was forced to "clarify" that the price was actually higher. They make $US160 ($209).

On Wednesday, the Senate's permanent subcommittee on investigations announced it was launching a probe into the pricing of Mylan's EpiPen, the life-saving allergy treatment device which cost about $US57 ($74) in 2007 and is priced at around $US600 ($782) today.

Mylan Pharmaceuticals, the makers of the EpiPen, spent the past decade making sure that its life-saving allergy product was in as many US public schools as possible. But the company has come under fire in recent weeks for raising the price of the drug from roughly $US57 ($75) in 2007 to about $US600 ($791) today -- all for about $1 worth of medicine. Now the New York Attorney General's Office is investigating whether Mylan broke antitrust laws in the contracts it made with schools.

Pharmaceutical company Mylan has announced plans to launch its first generic EpiPen. But at a cost of $US300 ($397) -- which is half of the branded product's list price -- it's still a heap of money for this critically important medicine.

Sarah Jessica Parker has cut ties with Mylan, the company that makes EpiPen, after it was criticised for raising the price of the life-saving allergy product by 400 per cent. Parker announced her decision last night on Instagram.