Ayahuasca alkaloids are generally considered to be narcotics under the law. According to countries, plants and preparation itself are not labelled as such systematically. Since Ayahuasca's use is rapidly expanding outside Brazil, this new "wild consumption" represents related risks of prohibition. The introduction of such practices outside its traditional framework raises concerns about manipulation and fraud. Abstract of a paper presented at the meeting of ccCTA and SFTA in Martigny, Switzerland on June 19-22, 2002