Comparing the obesity drugs

Increasing competition is the name of the game in drug development - a boon to patients, but an added layer of complexity for investors. The obesity field is a case in point. Until a few months ago, no new products had shown up in the armamentarium in years. But it's now likely that there will shortly be three: Interneuron Pharmaceuticals Inc.'s Redux dexfenfluramine, Knoll Pharmaceutical Co.'s Meridia sibutramine hydrochloride monohydrate, and Roche Laboratories' Xenical orlistat.

To help keep the players straight, the following is

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