Some of the more common side effects people experience from taking the drug are nervousness, dizziness, tremors, rapid heart rate, headaches, jitters, palpitations, insomnia, increased blood pressure. When taken at higher levels, Vit EE can cause drastic increases in blood pressure, as well as cardiac arrhythmias. Discontinue use if you experience any side effects. Do not use this weight loss product if you are now taking a prescription containing Monoamine Oxidase Inhibitor (MAOI) (Certain drugs for depression, psychiatric or emotional conditions, Parkinson's disease) or 2 weeks after stopping the MAOI drug. If you are uncertain whether your prescription drug contains an MAOI, consult a health professional before taking this product.