“…A burgeoning 'ayahuasca tourism' trade in South America, an influx of ayahuasca into the West for illicit use and the consumption of home-brewed preparations utilizing both B. caapi and P. viridis (or similar plants), are seen as having implications for public health (Gable, 2007) and for various national and/or international regulatory agencies. The possible medical benefits of ayahuasca (McKenna, 2004;Riba and Barbanoj, 2005) include its antioxidant, antimutagenic and antigenotoxic activity (Moura et al, 2007) as well as putative psychotherapeutic and rehabilitative effects (Andritzky, 1989;Mabit et al, 1996), and a potential to treat conditions such as alcoholism with tendencies toward violence, suicidal behaviors and severe depression (Callaway et al, 1994;Tiihonen et al, 1997;Hallikainen et al, 1999;Mantere et al, 2002). Thus, an examination of the biochemical parameters of ayahuasca, including its metabolism and clearance, will add to our understanding of this Amazonian medicine.…”