The final defendant in the Medoc kickback conspiracy was sentenced yesterday to 10 months in federal prison for his role in a prescription kickback scheme that cost federal insurance programs more than $4.4 million. According to court documents, Medoc conspirators knowingly solicited illegal kickbacks from Total RX, a Rowlett pharmacy that was struggling to stay afloat. In December 2014, Medoc executives Kevin Kuykendall and Mark Schneider approached Total RX owner Cuong Nguyen with a proposal: Nguyen could convert Total RX from an infusion pharmacy into a compounding pharmacy and begin filling prescriptions for Medoc. In return for referring lucrative prescriptions to Total RX, Medoc would receive a 50 percent commission.