Orexigen Therapeutics Dropping After Monster Gain Yesterday

Orexigen Therapeutics, Inc. OREX are dropping more than 3% this morning, after being up as much as 154% yesterday, on news that the FDA approved its controversial weight loss drug. Shares of Vivus VVUS and Arena Pharmaceuticals ARNA also spiked on the news yesterday, and are showing modest losses this morning. At last check, shares of OREX were off 33 cents to $8.44, a loss of 3.76%‎.