On February 25, 2015, the FDA warned consumers not to buy or use weight loss supplement Lean Body Extreme because it was found to contain sibutramine, desmethyl sibutramine, phenolphthalein, and sildenafil.

Sibutramine, the active ingredient in the obesity drug Meridia, was removed from the U.S. market in October 2010 because it can substantially increase blood pressure and pulse rate in some individuals, and may present a significant risk for patients with a history of coronary artery disease, congestive heart failure, arrhythmias, or stroke. This drug may also interact, in life-threatening ways, with other medications a consumer may be taking.

Phenolphthalein, once an ingredient in some over-the-counter laxative products, was reclassified by the FDA in 1999 as "not generally recognized as safe and effective."

Sildenafil, the active ingredient in Viagra, which is prescribed for erectile dysfunction. This drug can cause symptoms like headache and flushing, and can interact with medications containing nitrates such as nitroglycerine, resulting in dangerously low blood pressure.

Lean Body Extreme is sold on various websites and in some retail stores.

Consumers who have purchased this supplement should discontinue use immediately and contact their healthcare provider if they have experienced any adverse side effects. Consumers and healthcare providers are also encouraged to report any adverse reactions to the FDA's MedWatch Adverse Event Reporting Program.

See ConsumerLab.com's Review of Weight Loss Supplements for tests of related products.

See Related Warnings:

Weight Loss Supplement Contains Hidden Drug

FDA Warns of Weight Loss Supplement Dangers

FDA Warns Consumers Not to Buy or Use Weight Loss Supplement

Weight Loss Supplements Recalled

FDA Warns Some Bee Pollen Products for Weight Loss Are Dangerous

Bee Pollen and Weight Loss Supplements Recalled

FDA Warns Consumers Not To Buy Or Use Weight Loss Supplement

Recall of "Bee Pollen" Supplement Found to Contain Drug

FDA Warns Consumers of Weight Loss and Body Reshaping Supplements Containing Controlled Substance

To read the FDA's warning, use the link below.