9 Investigates

Drug company accuses EpiPen maker of illegally blocking competition

The company Sanofi, which made its own epinephrine auto-injector, Auvi-Q, is suing Mylan.

Sanofi claims Mylan offered insurance companies and middlemen deals if they paid for EpiPens, but not Auvi-Q.

[CLICK HERE to read the lawsuit]

EpiPens can be life-saving for severe allergic reactions. The price tag for them climbed about 400 percent over roughly a decade.

Action 9 investigator Jason Stoogenke was one of the first reporters in the country to report on the outrage over the tab.

[READ MORE: Mylan launching generic version of EpiPen]

Read more top trending stories on wsoctv.com: