Medco Health Solutions Inc. (MHS) is scheduled to release its second-quarter 2011 earnings on July 21, 2011 before the market opens. The company is expected to report EPS of 94 cents on revenues of $17.08 billion during the quarter, according to Zacks Consensus Estimates. With respect to earnings surprises, Medco has exceeded the expectations in [...] (MHS) Medco Health Solutions 2011 Second Quarter Earnings Preview