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' (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.