Consult your physician before using this or any dietary supplement. Do not take if you are a female, pregnant or nursing elderly or under the age of 18, chronically ill, or taking prescription or over the counter medicine, including but not limited to antidepressants (mao inhibitors), stimulants, allergy medications, and medications for high blood pressure or other cardovascular conditions. Discontinue use if you experience diziness, headache, nausea, or heart palitations. If you have trouble sleeping, do not take within 6 hours of bedtime. Keep out of reach of children.