Vivus (VVUS) -6.2% premarket after Jefferies downgrades shares to Underperform, citing generic competition. While investors have been concerned about patents for the weight-loss drug Qsymia, the firm thinks doctors may choose to prescribe generics since branded Qsymia is unlikely to be covered by payors and the two generics will be more affordable for patients.
Vivus (VVUS) -6.2% premarket after Jefferies downgrades shares to Underperform, citing generic...
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