In the following video, Motley Fool health-care bureau chief Brenton Flynn discusses some diverging trends in the prices of pharmaceuticals. According to Express Scripts' (NASDAQ:ESRX) drug trend report, while traditional drug prices are down year over year, prices of specialty drugs have shot up almost 20%. These types of drug are typically more complicated to administer, difficult to discover or manufacture, and generally used for chronic or long-term conditions with few other options. Brenton tells investors why companies continue to shift its focus toward the lucrative specialty drug field.