Sibutramine is an appetite suppressant that was withdrawn from the U.S. market in October 2010 (due to increased risk of seizures, heart attacks, arrhythmia and strokes). Phenolphthalein is an ingredient previously used in over-the-counter laxatives, but because of concerns of carcinogenicity, it is not currently approved for marketing in the United States. These undeclared ingredients make these products unapproved new drugs for which safety and efficacy have not been established. At this time no illnesses or injuries have been reported to New Life Nutritional Center in connection with these products. For more information see FDA's full press release.
[1] FDA Firm Press Release, " New Life Nutritional Center Issues Voluntary Recall of Super Fat Burner, Maxi Gold and Esmeralda Dietary Supplements Due to the Presence of Undeclared Sibutramine and Phenolphthalein" (March 25, 2014).