Possible side effects:

Nervousness, dizziness, tremor, alternations in blood pressure or heart rate, headache, and gastrointestinal distress. The product is not intended for long time use. Do not use for more than 8 weeks without a break.

• Should not be used if you are allergic to caffeine or ephedrine.
• Should not be used if suffering from any heart disorder, increased metabolism or high blood pressure.
• Should not be used if using anti depression medicine.
• Should not be used if you are pregnant or nursing.
• Should not be used by any person under the age of 18.
• Consult your doctor before use if you are taking any kind of medicine