OPEN Foundation

Indigenous use

Report on psychoactive drug use among adolescents using ayahuasca within a religious context

Ritual use of ayahuasca within the context of the Brazilian ayahuasca churches often starts during late childhood or early adolescence. Premature access to psychoactive drugs may represent a risk factor for drug misuse. Conversely, religious affiliation seems to play a protective role in terms of substance abuse. The objective of this study was to describe patterns of drug use in a sample of adolescents using ayahuasca within a religious setting. Forty-one adolescents from a Brazilian ayahuasca sect were compared with 43 adolescents who never drank ayahuasca. No significant differences were identified in terms of lifetime substance consumption. Throughout the previous year period, ayahuasca adolescents used less alcohol (46.31%) than the comparison group (74.4%). Recent use of alcohol was also more frequent among the latter group (65.1%) than among ayahuasca drinkers (32.5%). Although not statistically significant, slight differences in terms of patterns of drug use were definitely observed among groups. Despite their early exposure to a hallucinogenic substance, adolescents using ayahuasca in a controlled setting were mostly comparable to controls except for a considerably smaller proportion of alcohol users. Religious affiliation may have played a central role as a possible protective factor for alcohol use. Thus, ayahuasca seems to be a relatively safe substance as far as drug misuse is concerned.

Doering-Silveira, E., Grob, C. S., de Rios, M. D., Lopez, E., Alonso, L. K., Tacla, C., & Da Silveira, D. X. (2005). Report on psychoactive drug use among adolescents using ayahuasca within a religious context. Journal of psychoactive drugs, 37(2), 141-144. 10.1080/02791072.2005.10399794
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Hallucinogens: An update

Abstract

Research of hallucinogen abuse rarely extends beyond epidemiology and observed pathology. Even less research has been completed on the special circumstances surrounding the religious use of hallucinogens or on potential therapeutic applications. Rather than offer another basic review on the well-known hazards of illicit hallucinogen use, this paper provides an overview and practice recommendations on compounds the clinician may be less familiar with, such as the botanical plant Salvia divinorum, the drug 3,4-methylenedioxymethamphetamine (“ecstasy”) and synthetic hallucinogen analogs. The often-warned, but rarely occurring, hazard of hallucinogen persisting perception disorder (“flashbacks”) is also reviewed with treatment recommendations provided. The current status of clinical research with the hallucinogens is presented, with case vignettes suggesting hallucinogens may have anti-addictive applications. The special circumstances surrounding the religious, nondrug use of hallucinogens as sacred sacraments in the US and elsewhere are also presented. It is hoped that the reader will gain a more nuanced understanding of how these physiologically nonaddictive drugs may offer legitimate benefits in modern society. By appreciating that such benefits may one day be borne out by careful, methodologically sound research, clinicians should be better armed in raising the topic of hallucinogen use and abuse with their patients.

Halpern, J. H. (2003). Hallucinogens: an update. Current psychiatry reports, 5(5), 347-354. https://dx.doi.org/10.1007/s11920-003-0067-4

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Pharmacokinetics of Hoasca alkaloids in healthy humans

Abstract

N,N-Dimethyltryptamine (DMT), harmine, harmaline and tetrahydroharmine (THH) are the characteristic alkaloids found in Amazonian sacraments known as hoasca, ayahuasca, and yajè. Such beverages are characterized by the presence of these three harmala alkaloids, where harmine and harmaline reversibly inhibit monoamine oxidase A (MAO-A) while tetrahydroharmine weakly inhibits the uptake of serotonin. Together, both actions increase central and peripheral serotonergic activity while facilitating the psychoactivity of DMT. Though the use of such ‘teas’ has be known to western science for over 100 years, little is known of their pharmacokinetics. In this study, hoasca was prepared and administered in a ceremonial context. All four alkaloids were measured in the tea and in the plasma of 15 volunteers, subsequent to the ingestion of 2 ml hoasca/kg body weight, using gas (GC) and high pressure liquid chromatographic (HPLC) methods. Pharmacokinetic parameters were calculated and peak times of psychoactivity coincided with high alkaloid concentrations, particularly DMT which had an average Tmax of 107.5±32.5 min. While DMT parameters correlated with those of harmine, THH showed a pharmacokinetic profile relatively independent of harmine’s.

Callaway, J. C., McKenna, D. J., Grob, C. S., Brito, G. S., Raymon, L. P., Poland, R. E., … & Mash, D. C. (1999). Pharmacokinetics of Hoasca alkaloids in healthy humans. Journal of ethnopharmacology, 65(3), 243-256. 10.1016/S0378-8741(98)00168-8
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30 April - Q&A with Rick Strassman

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