Son of Fen-Phen in Arena Trials Shows Promise That Eluded Wyeth

Bloomberg.com: Worldwide: "Arena Pharmaceuticals Inc. is racing to market a diet pill similar to fen-phen, the drug combination prescribed 6 million times before it was recalled for deadly side effects a decade ago. Fen-phen shed pounds twice as much as a placebo in people on a low-calorie diet until it was linked with heart failure and a fatal lung disorder. Now Arena, the fledgling biotechnology company, says it may sell a weight-loss drug by 2010 that blocks appetite signals in the brain using the same method as fen-phen, without the side effects. "