Do not use in combination with caffeine or any stimulants from other sources whatsoever, including but not limited to, coffee, tea, soda and other dietary supplements or medications. Do not use under extreme conditions of heat, cardiovascular exertion, sleep deprivation, or dehydration. Do not combine with alcohol. Pregnant or nursing women should not use this product. This product is only intended to be consumed by healthy adults 18 years of age or older. Consult with your Physician before using this product, especially if you are using any prescription or over the counter medication or if you have any pre-existing medical condition including but not limited to high or low blood pressure, cardiac arrhythmia, stroke, heart, liver, kidney or thyroid disease, seizure disorder, psychiatric disease, diabetes, difficulty urinating due to prostate enlargement or if you are taking a MAOI (Monoamine Oxidase Inhibitor) or any other medication. Do not use if you are taking erectile dysfunction medication. Do not take additional nitrates in the form of medication or dietary supplements along with this product. This product contains caffeine and should not be taken by individuals wishing to eliminate this ingredient from their diet. Discontinue use 2 weeks prior to surgery. Discontinue use and consult with your health care professional if you experience any adverse reaction to this product. Do not exceed recommended serving. Do not use if safety seal is broken or missing. Keep out of reach of children.