The tiny south Florida pharmacy that built a profitable business blowing the whistle on drug companies that cheat the government has won a signal victory. A Texas jury on Tuesday ordered two subsidiaries of Icelandic pharmaceuticals company Actavis to pay $170 million for overcharging the Texas Medicaid program. That means the whistle-blower Ven-A-Care of the Florida Keys Inc. is in line to receive millions in reward money for acting as the public's watchdog. It's the first time that one of the targets of Ven-A-Care's lawsuits has elected to go to trial rather than settle out of court. And it continues the Key West company's whistle-blowing winning streak.