Seek advice from a health care practitioner prior to use if you have any pre-existing medical condition including (but not limited to): high blood pressure, heart, liver, or thyroid disease, diabetes, psychiatric disease, pernicious anemia, anxiety, depression, seizure disorder, cardiac arrhythmia?s, stroke, difficulty urinating due to prostate enlargement, or if you are taking an MAO inhibitor or any other prescription drug. Do not use if you are pregnant or nursing. Reduce or discontinue use if excessive sleeplessness, tremors, dizziness, nervousness, headaches, or heart palpitations occur. For use by healthy adults only. Not intended for use by persons under the age of 18. Keep out of reach of children. After 12 weeks of use discontinue for at least 2 weeks.