The below doses are based on scientific research, publications, traditional use, or expert opinion. Many herbs and supplements have not been thoroughly tested, and safety and effectiveness may not be proven. Brands may be made differently, with variable ingredients, even within the same brand. The below doses may not apply to all products. You should read product labels, and discuss doses with a qualified healthcare provider before starting therapy.
Adults (18 years and older)
Drinking coca tea is a common practice in several South American countries. Coca tea bags normally contain about one gram of leaves.
For cocaine dependence, chewing 100-200 grams of coca leaf per week for about 27 months has been used.
For exercise performance, 15-16 grams of coca leaves (providing 0.4%-0.7% cocaine) has been chewed for one hour; "unlimited" or "usual" amounts of coca leaves for chewers and 4.5 grams non-chewers have been chewed for one hour.
For hypoglycemia (low blood sugar), an unknown amount of coca leaves has been chewed for thirty minutes.
Children (under 18 years old)
There is no proven safe or effective dose for coca in children.
This evidence-based monograph was prepared by The Natural Standard Research Collaboration