Not intended for use by persons under the age of 18. Do not consume synephrine or caffeine from other sources, including but not limited to coffee, tea, soda and other dietary supplements of medicators containing pherylephrine or caffeine. Contains Caffeine. Do not use for more than 6 weeks. Consult your physician prior to use if you pregnant or nursing, or if you are taking medications, including but not limited to: MAOI inhibitors, antidepressants, aspirin, nonsteroidal anti-inflammatory drugs or products containing phenylephrine, ephedrine, pseudoephedrine, or other stimulants. Consult your physician prior to use if you have a medical condition, including but not limited to: heart, liver, kidney or thyroid disease, psychiatric or epileptic disorders, difficulty urinating, diabetes, high blood pressure, cardiac arrhythmia, recurrent headaches, enlarged prostate or glaucoma. Discontinue 2 weeks prior to surgery or if you experience a rapid heart-beat, dizziness, severe headache or shortness of breath.