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For inquiries regarding the utilization of ethnobotanicals, or in case you are experiencing an adverse situation or difficulty integrating and experience, please read this page. For inquiries regarding legal support , please read this page.

  • We don’t offer sessions of ayahuasca or iboga.
  • We don’t recommend centers or people who perform/do sessions.

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    Carrer de Sepúlveda, 65 , Oficina 2, 08015 Barcelona España +34 931 88 20 99
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    EVENTS Noticias NEWS

    The Integration of Knowledge in Healthcare Systems

    Under the title “The Science & History of Psychedelics,” Bouso explored the neurobiological basis for the use of psychedelics,...

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    Noticias NEWS

    Medicine or Poison: The Paradox of Psychoactive Plants

    In a world that oscillates between spiritual veneration and criminalization, Jerónimo Mazarrasa — Program Director at ICEERS —...

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    EVENTS NEWS

    La Seta Crítica III: Conscious Encounters and Community in the Mountains of Madrid

    On the weekend of May 24 and 25, 2025, the third edition of La Seta Crítica was held in the Sierra de Guadarrama, in Madrid. This...

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    Noticias NEWS

    The Impact of Cannabinoids on Social Cognition: Results of a Study in Natural Context

    How does the consumption of cannabinoids affect our ability to understand and relate to others? Is our emotional perception altered?...

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    Latest posts

    José Carlos Bouso ICEERS integración de saberes integration of knowledge

    The Integration of Knowledge in Healthcare Systems

    Under the title “The Science & History of Psychedelics,” Bouso explored the neurobiological basis for the use of psychedelics, their history, and the challenges posed by their integration into the Western biomedical model.

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    Jeremy Narby Amazonians AYA2019 World Ayahuasca Conference iowaska ICEERS

    My Life as a White Vampire: Gringos, Amazonians and the Antidote of Reciprocity

    Many years ago, Jeremy Narby spent time living among the Ashaninka people in the Peruvian Amazon, studying how they used the rainforest. At first he didn’t pay much attention to what they thought of him, but he soon realized that they too had an eye on him. He came to realize that the people he was living with considered him as a pishtako, a “white vampire” – someone who kills to extract human fat. At first, he found it disturbing to think that people could see him this way.

    Dennis McKenna plant intelligence ICEERS AYA2019 World Ayahuasca Conference

    Plant Intelligence: What the Plants are Telling Us

    Dennis McKenna is a world-renowned ethnobotanist and public speaker, co-founder of the Hefter Institute, and founder of the new organization the McKenna Academy for Natural Philosophy. In his talk at AYA2019, McKenna explored the notion of plant intelligence, describing how plants communicate through chemical messenger molecules, and how hyperconnected networks between organisms are the basis of life on earth. This post is a summary of his talk at the 2019 World Ayahuasca Conference held in Girona, Spain.

    ayahuasca iowaska practices cooking jungle ICEERS

    New Guide: “Towards Better Ayahuasca Practices”

    ICEERS is launching a new informative guide on ayahuasca, which was commissioned by the Department of Health of the Generalitat de Catalunya. “Towards Better Ayahuasca Practices: A Guide for Organizers and Participants” is a compilation of basic ethical and security standards for the use of ayahuasca in non-Amazonian contexts and deals with areas of legality and both individual and collective responsibility.

    ibogaine treatment ICEERS hand pill

    Ibogaine Treatment and the Global Overdose Epidemic

    Ibogaine, a substance derived from the root bark of an African plant (Tabernanthe iboga) and historically used in ethnomedicine in traditional communities, is showing promise for lasting reductions in drug use, withdrawal, and cravings.

    ibogaine alcoholism studies ICEERS research study science

    New Research: Ibogaine for the Treatment of Alcoholism

    ICEERS is collaborating with researchers from the University of São Paulo in Ribeirão Preto, Brazil, to carry out a clinical trial studying the tolerability and efficacy of ibogaine in the treatment of alcoholism.

    Commission on Narcotic Drugs ICEERS UN United Nations

    Report Back: 61st Session of the Commission on Narcotic Drugs

    ICEERS participated in the United Nations Commission on Narcotic Drugs (CND) meetings in Vienna, a meeting held every March where 53 states come together to discuss and formulate guidelines relating to drug policy at the international level.