In 2015, Martin Shkreli, CEO of Turing Pharmaceuticals, raised the price of Daraprim

(a drug used for toxoplasmosis which can be fatal to HIV patients)

from $13.50 per pill to

$750. Outrage over the price increase led to a Congressional Hearing in which Shkreli refused to answer questions. In the United States, there is nothing illegal about pharmaceutical companies raising prices as high as the market will bear. The Food and Drug Administration

(and other governmental agencies) has no authority over drug pricing. Should pharmaceutical companies be allowed legally to raise drug prices as much as they can?

What are the ethics of regulating and not regulating drug prices?