FDA alerted consumers nationwide not to purchase or consume more than 25 different products marketed for weight loss because they contain undeclared, active pharmaceutical ingredients that may put consumers' health at risk. The undeclared active pharmaceutical ingredients in some of these products include sibutramine (a controlled substance), rimonabant ( a drug not approved for marketing in the United States), phenytoin ( an anti-seizure medication), and phenolphthalein (a solution used in...