For Mylan, it was a perfect plan—diabolical, unstoppable. The company made changes in its anti-allergy EpiPen dispenser in 2009, enough to give it patent protection. Then, in 2012, it began to give away free pens to schools, gradually making school nurses at least partly dependent on them. Meanwhile the company was successfully lobbying for the “Emergency Epinephrine Act,” commonly referred to as the “EpiPen Law,” …