Do not use prior to or while operating machinery or a vehicle or if you are otherwise engaged in an activity in which you need to stay alert. Individuals with autoimmune conditions, diabetes or other endocrine disorders, depressive disorders, illness or those who are pregnant, lactating or using medications should consult their physician prior to use. This product is for adults and should not be used by children or teenagers. Younger adults should seek the advice of their physician prior to using this product on a continuous basis. Not recommended for use with MAO-inhibiting antidepressant prescriptions.