Shares of Express Scripts (ESRX -4.2%)and Medco (MHS -8.8%) sink off of a report that the FTC is...

|About: Express Scripts, Inc. (ESRX)|By:, SA News Editor

Shares of Express Scripts (ESRX -4.2%)and Medco (MHS -8.8%) sink off of a report that the FTC is gathering evidence to use in a bid to block a deal between the companies to merge. A final decision on whether or not to sue is expected from the agency by end of February or early in March.