UPDATE 4-Ranbaxy aims to copy AstraZeneca’s top drug Nexium
AstraZeneca Plc (AZN.L: Quote, Profile, Research) said on Tuesday the U.S. patent on its top-selling drug Nexium had been challenged by India’s Ranbaxy Laboratories Ltd (RANB.BO: Quote, Profile, Research), sending its shares down more than 2 percent.
Industry analysts said a generic challenge to the $4 billion-a-year heartburn and anti-ulcerant pill had long been expected, since […]