WASHINGTON (WCIV) -- The Food and Drug Administration issued an advisory this week recommending people avoid Fat Zero, a weight loss product that is available online and in some stores because it contains an unsafe ingredient.
According to the FDA, Fat Zero contains sibutramine, a controlled substance that was taken off the market nearly three years ago for safety reasons.
The agency says the drug could substantially reduce blood pressure or pulse rate in some people and could become a serious risk for people with a history of coronary artery disease, congestive heart failure, arrhythmias, or stroke.
"This product may also interact, in life-threatening ways, with other medications a consumer may be taking," the FDA said in a release.
The FDA says people with the product should immediately stop using it and throw it away.
"Consumers who have experienced any negative side effects should consult a health care professional as soon as possible," the agency added.Health care professionals and patients are encouraged to report adverse events or side effects related to the use of these products to the FDA's MedWatch Safety Information and Adverse Event Reporting Program: