British Journal of Clinical Pharmacology
June 1, 2002
Jordi Riba, P. Anderer, Adelaida Morte et al.
126 citations
Aims Ayahuasca is a traditional South American psychoactive beverage used in Amazonian shamanism, and in the religious ceremonies of Brazilian‐based syncretic religious groups with followers in the US and several European countries. This tea contains measurable amounts of the psychotropic indole N , N ‐dimethyltryptamine (DMT), and β‐carboline alkaloids with MAO‐inhibiting properties. In a...
Journal of Psychoactive Drugs
2002
Robin Rodd
30 citations
Current understanding of the preparation and use of yopo, a hallucinogenic snuff made from the ground seeds of the Anadenanthera peregrina tree, has departed little from the accounts of scientists and travelers made over a century ago. Schultes and others have made refinements to these early accounts. While several scholars have drawn attention to the fact that little ethnographic work has been...
Psychotropes
2002
Frédérick Bois-Mariage
10 citations
Résumé Pratiquement inconnus dans les pays occidentaux il y a encore quelques décennies, l'ayahuasca et ses rituels y font aujourd?hui une entrée remarquable. Nous présentons une synthèse multi et interdisciplinaire de cette singulière préparation psychotrope, dont deux des alcaloïdes principaux sont na~turellement présents dans le corps humain. Les aspects pharmacochimiques (compositions,...
Psychopharmacology
February 22, 2001
Jordi Riba, Antoni Rodrı́guez-fornells, Gloria Urbano et al.
302 citations
RationaleAyahuasca is a South American psychoactive beverage that contains the naturally occurring psychedelic agent N,N-dimethyltryptamine (DMT). This "tea" has been used for centuries in religious and medicinal contexts in the rain forest areas of South America and is presently gaining the attention of psychedelic users in North America and Europe.ObjectivesIn the present study, the...
April 27, 2000
Beatriz Caiuby Labate
29 citations
As religioes ayahuasqueirasbrasileiras, sobretudo a Uniao do Vegetal (UDV) e o Santo Daime, vem se espalhando pelos grandes centros urbanos brasileiros a partir das decadas de 70 e 80, respectivamente, e por outros paises, sobretudo desde o final da decada 80. Um desdobramento deste processo e o surgimento de novas modalidadesurbanas de consumo da ayahuasca: pequenos grupos experimentais que...
Journal of Ethnopharmacology
June 1, 1999
James C. Callaway, Dennis J. Mckenna, C S Grob et al.
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...
Drug and Alcohol Dependence
May 1, 1999
Cory S. Freedland, Robert S. Mansbach
51 citations
Ayahuasca is a psychoactive plant mixture typically composed of the beta-carboline-rich Banisteriopsis caapi vine and the hallucinogenic plant Psychotria viridis. Ayahuasca has long been used by aboriginal populations for its putative spiritual and medicinal benefits. Although the presumed primary chemical constituents of ayahuasca have been identified, little is known about the basic in vivo...
Journal of Ethnopharmacology
April 1, 1999
Alicia B Pomilio, A A Vitale, Jorge Ciprian-Ollivier et al.
34 citations
The experimental psychosis observed after drinking Ayahoasca, a South American hallucinogenic beverage from the Amazon Indians, reproduces the pathologic transmethylation theory of schizophrenia. This theory postulates a decrease in the monoamine oxidase (MAO) activity, which results in the accumulation of methylated indolealkylamines, such as bufotenin (5-hydroxy-N,N-dimethyltryptamine),...
Journal of Psychoactive Drugs
December 1, 1998
James C. Callaway, Charles S. Grob
134 citations
The Amazonian psychoactive plant beverage ayahuasca has attracted increasing interest in recent years. Little attention has been given, however, to potentially dangerous interactions with other drugs. In particular, the interaction between the potent monoamine oxidase-inhibiting harmala alkaloids in ayahuasca and the selective serotonin reuptake inhibitor (SSRI) class of antidepressants may...
Phytomedicine
April 1, 1998
Neville S. Arachchige Don, Bruce E. Mcdonough, Gabriel Acácio de Moura et al.
33 citations
EEG data were recorded under field conditions from 11 members of the Santo Daime Doctrine, a Brazilian shamanistic religion, before and after ingesting the psychoactive alkaloid preparation, ayahuasca, or daime, as they term it. Post-ingestion, we observed increases in power in the 36-44 Hz frequency band ("40 Hz") from the left occipital-temporal-parietal scalp electrodes in the eyes-closed...