Nutrex Research Lipo 6X is being voluntarily recalled from the Canadian market because of the risk of serious, potentially fatal adverse effects from the combination of the ingredients in the product. To date, Health Canada has not received any reports of adverse reactions in Canada associated with the use of Nutrex Research Lipo 6X. Nutrex Research Lipo 6X is not authorized by Health Canada and is promoted for weight loss or body building. It contains caffeine and synephrine, which is similar to ephedrine. When used in combination with caffeine and other stimulants, synephrine and/or ephedrine has caused reported adverse events ranging from dizziness, tremors, headaches and irregularities in heart rate to seizures, psychosis, heart attacks and stroke.