Shanon and William Schmidtknecht, of Poynette, say their 22-year-old son Cole was told the cost had jumped from $66 to $539 out-of-pocket. He tried to manage his condition with his rescue inhaler but suffered a fatal asthma attack days later.

After a $500 price rise for asthma meds, Cole Schmidtknecht couldn't afford to refill his prescription.

A Wisconsin couple is suing Walgreens and a pharmacy benefits management company, alleging that their son died because he couldn't afford a sudden $500 spike in his asthma medication.