U.S. Department of Justice says ista pharmaceuticals pleads guilty to federal felony charges, to pay $33.5 million to resolve criminal liability and false claims act allegations * Justice Department says settlement relates to ista's marketing, distribution and sale of drug xibrom * Justice Department says ista pleaded guilty in a New York federal court to conspiring to illegally introduce a misbranded drug into interstate Commerce * Justice Department says ista pleaded guilty to offering kickbacks to induce doctors to prescribe xibrom * Justice Department says whistleblower to receive about $2.5 million of the settlement amount

http://www.reuters.com/article/2013/...N0094T20130524