> <i>it raised the price overnight, to more than $23,000 a vial, from $1,650, bringing the cost of a typical course of treatment for infantile spasms to above $100,000.</i><p>> <i>we only have about 800 patients a year</i><p>> <i>Sales ... totaled nearly $350 million in the first nine months this year, up 145 percent from the period a year earlier</i><p>The counter-intuitive lesson is that charging vastly higher prices don't necessarily hurt sales.