Why did Mylan hike EpiPen prices 400 %? Because they could?

UPDATED 08/22/2016, including a statement from Mylan at the end] Mylan pharmaceutical company has a virtual monopoly on EpiPens after a voluntary recall felled their only competitor*, Sanofi’s Auvi Q, over possible dosage miscalibrations…. The cost trickery is in the delivery system, the Mylan EpiPen.

What happens if an EpiPen is used when not needed?

Accidental Epinephrine Injections