Vivus Inc.’s (VVUS) first quarter 2011 loss of 12 cents per share was narrower than the Zacks Consensus loss Estimate by 3 cents and the year-ago loss (from continuing operations) by 9 cents. The narrower loss in the reported quarter was attributable to a decline in operating costs. Vivus did not generate any revenues in [...] (VVUS) Vivus First Quarter 2011 Loss Narrower than Expected