"Aside from indicating a general lack of harm from the religious use of ayahuasca, biomedical and ethnographic studies have also generated preliminary evidence in support of the therapeutic potentials of ayahuasca or its constituents for alleviating substance dependence (Grob et al., 1996; Labate, Santos, Anderson, Mercante, & Barbosa, 2010) and mood and anxiety disorders (Fortunato et al., 2010; Santos, Landeira-Fernandez, Strassman, Motta, & Cruz, 2007). The study of ayahuasca could thus contribute to advances in ethnopharmacology and the cognitive sciences (Shanon, 2002), yet such studies are severely compromised when these traditions face the threat of legal sanction."
Anderson, B. T.; Labate, B. C.; Meyer, M.; Tupper, K. W.; Barbosa, P. C. R.; Grob, C. S.; Dawson, A. & McKenna, D., "Statement on ayahuasca," International Journal of Drug Policy (London, United Kingdom: International Harm Reduction Association, March 2012) Vol. 23, No. 2.