Do not use if you are under the age of 18 or elderly. Do not take with any other stimulant or weight-loss supplement or any prescription or over-the-counter medicine. Do not use if you are pregnant or nursing or at risk of being treated for high-blood pressure, heat disease, hyperthyroidism, spasms, psychiatric disease, suffer from migraines, have asthma, or are taking asthma medication. Discontinue use if you experience dizziness, headache, nausea, or heat palpitations. If you have trouble sleeping, do not take within 6 hours of bedtime. Keep our of reach of children. Caution: This product contains strong stimulants and should not be combined with any other stimulant or weight-loss supplement or medicine.