Not intended for use as a substitute for sleep. If fatigue or drowsiness persists or continues to recur, consult a doctor. The recommended dose of this product contains about as much caffeine as a cup of coffee. Limit the use of caffeine containing medications, foods or beverages while taking this product because too much caffeine may cause nervousness, irritability, sleeplessness and occasionally rapid heart beat. Do not give to children under the age of 12 years of age. As with any drug, if you are pregnant, nursing a baby, have high blood pressure or a heart condition, seek the advice of a health professional before using this product. Always read the label. Use only as directed, if symptoms persist see your healthcare professional.