prescription rx drug costs soar for sicker patients

Co-Payments for Expensive Drugs Soar - New York Times:

But the new system sticks seriously ill people with huge bills, said James Robinson, a health economist at the University of California, Berkeley. “It is very unfortunate social policy,” Dr. Robinson said. “The more the sick person pays, the less the healthy person pays.”
Traditionally, the idea of insurance was to spread the costs of paying for the sick.
“This is an erosion of the traditional concept of insurance,” Mr. Mendelson said. “Those beneficiaries who bear the burden of illness are also bearing the burden of cost.”