Cocaine metabolites in pre-Columbian mummy hair.

Abstract

Chewing of coca leaves was an integral part of many Andean pre-Columbian populations. Since the cocaine metabolite benzoylecognine is entrapped in hair of the user, this could serve as a convenient specimen for analysis. We tested the scalp hair of 8 Chilean mummies with dates ranging from 2,000 BC to 1,500 AD. This article reports that benzoylecognine is very stable and can be found in mummy hair.