This product should only be used by healthy adults at least 21 years old. Do not exceed the recommended dose or duration of 4 weeks. Do not use if you are at risk of, or being treated for diabetes, liver problems or high blood pressure. Do not drink alcohol while using this product, and increase daily water intake. Advanced Cycle Support Rx should always be used along with Metha-Drol Extreme. This product can negatively affect male fertility. Always Consult your health care professional before using any dietary supplements.