A Texas trio ran a $60 million drug operation in Nashville that sold thousands of pounds of unregulated pharmaceuticals to independent pharmacies across the state, according to a federal indictment announced Thursday. For about three years, according to the U.S. attorney’s office in Nashville, a couple and an associate from Houston moved large quantities of discounted prescription drugs from street dealers in New York City and Miami through a sophisticated distribution system they used to dupe pharmacies into buying the products. The aim of the “drug diversion” scheme was to make a handsome profit on unregulated medications. The three Texans portrayed the operation as a wholesaler, authorities say. The federal investigation led to grand jury indictments of Charles Edwards, 51; Brenda Edwards, 42; and Jerrod Smith, 43, all from the Houston area. None of the three could be reached for comment. The company the three allegedly operated, Cumberland Distribution, used warehouses in Nashville to sort and relabel drugs to make them appear as if they had been purchased legally, according to the indictment. Authorities further allege the defendants fabricated documents they gave to pharmacy customers, who received at least 3,600 pounds of pharmaceuticals. The transactions, which persisted for nearly three years ending in August 2009, moved more than $58 million in pharmaceuticals, resulting in a $14 million profit for Cumberland, prosecutors say. Jerry Martin, U.S. attorney for the Middle District of Tennessee, called the scheme “a grave threat to the public.” He said some of the unregulated drugs could have been contaminated, expired or otherwise mismanaged. Martin would not comment about whether the unregulated drugs had harmed any consumers.