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Ritualistic use of the holly Ilex guayusa by Amazonian Jívaro Indians.
J Ethnopharmacol 1991 May-Jun; 33(1-2):25-30JE

Abstract

In Amazonian Peru and Ecuador leaf decoctions of the rainforest holly Ilex guayusa with high caffeine concentrations are used as a morning stimulant. After daily ingestion, ritualistic vomiting by male Achuar Indians, better known as Jívaros, reduces excessive caffeine intake, so that blood levels of caffeine and biotransformed dimethylxanthines do not cause undesirable CNS and other effects. Emesis is learned and apparently not due to emetic compounds.

Authors+Show Affiliations

Department of Biology, Washington University, St. Louis, MO 63130.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

1682531

Citation

Lewis, W H., et al. "Ritualistic Use of the Holly Ilex Guayusa By Amazonian Jívaro Indians." Journal of Ethnopharmacology, vol. 33, no. 1-2, 1991, pp. 25-30.
Lewis WH, Kennelly EJ, Bass GN, et al. Ritualistic use of the holly Ilex guayusa by Amazonian Jívaro Indians. J Ethnopharmacol. 1991;33(1-2):25-30.
Lewis, W. H., Kennelly, E. J., Bass, G. N., Wedner, H. J., Elvin-Lewis, M. P., & Fast, D. (1991). Ritualistic use of the holly Ilex guayusa by Amazonian Jívaro Indians. Journal of Ethnopharmacology, 33(1-2), pp. 25-30.
Lewis WH, et al. Ritualistic Use of the Holly Ilex Guayusa By Amazonian Jívaro Indians. J Ethnopharmacol. 1991;33(1-2):25-30. PubMed PMID: 1682531.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ritualistic use of the holly Ilex guayusa by Amazonian Jívaro Indians. AU - Lewis,W H, AU - Kennelly,E J, AU - Bass,G N, AU - Wedner,H J, AU - Elvin-Lewis,M P, AU - Fast,D, PY - 1991/5/1/pubmed PY - 1991/5/1/medline PY - 1991/5/1/entrez SP - 25 EP - 30 JF - Journal of ethnopharmacology JO - J Ethnopharmacol VL - 33 IS - 1-2 N2 - In Amazonian Peru and Ecuador leaf decoctions of the rainforest holly Ilex guayusa with high caffeine concentrations are used as a morning stimulant. After daily ingestion, ritualistic vomiting by male Achuar Indians, better known as Jívaros, reduces excessive caffeine intake, so that blood levels of caffeine and biotransformed dimethylxanthines do not cause undesirable CNS and other effects. Emesis is learned and apparently not due to emetic compounds. SN - 0378-8741 UR - https://www.unboundmedicine.com/medline/citation/1682531/Ritualistic_use_of_the_holly_Ilex_guayusa_by_Amazonian_Jívaro_Indians_ L2 - https://linkinghub.elsevier.com/retrieve/pii/0378-8741(91)90156-8 DB - PRIME DP - Unbound Medicine ER -