Rx-to-OTC Switches - Game Changers for the U.S. OTC Drugs Market through 2019, Sees Kline PARSIPPANY, N.J., July 30, 2015 (GLOBE NEWSWIRE) -- Growth of the U.S. nonprescription market is primarily driven by Rx-to-OTC switches as they bring former prescription users to the OTC market. Due...