Set and setting predict psychopathology, wellbeing and meaningfulness of psychedelic experiences: a correlational study.

BACKGROUND: In psychedelic therapy, the importance of set and setting is a fundamental but under-researched assumption. The aim of this study is to correlate variables of set (psychedelic use motivation) and setting (psychedelic use location and type of companion) with psychopathology, wellbeing and personality variables. RESEARCH DESIGN AND METHODS: A sample of 1022 participants of the Spanish-speaking population was collected through an online survey. A novel instrument, the Psychedelic Use Scale (PUS), was developed to measure substance use variables of LSD, mescaline, psilocybin, DMT, 5-Meo-DMT, ketamine, Salvia divinorum, ibogaine and MDMA. Various personality, well-being and psychopathology instruments were implemented to measure outcome variables. RESULTS: Growth motivations, natural settings and presence of significant others predicted less psychopathology, greater wellbeing and meaningfulness of psychedelic experiences, whereas problematic motivations predicted greater psychopathology, lower wellbeing and did not predict meaningfulness of psychedelic experiences. CONCLUSIONS: Based on these results, we suggest experimental hypotheses for future clinical trials and longitudinal studies with potential clinical implications.

Cardiovascular safety of psychedelic medicine: current status and future directions.

Psychedelics are powerful psychoactive substances that alter perception and mood processes. Their effectiveness in the treatment of psychiatric diseases was known before their prohibition. An increasing number of recent studies, due to the indisputable resurgence of serotonergic hallucinogens, have shown their efficacy in alleviating depression, anxiety, substance abuse therapies, and existential distress treatment in patients facing life-threatening illness. Psychedelics are generally considered to be physiologically safe with low toxicity and low addictive potential. However, their agonism at serotonergic receptors should be considered in the context of possible serotonin-related cardiotoxicity (5-HT2A/2B and 5-HT4 receptors), influence on platelet aggregation (5-HT2A receptor), and their proarrhythmic potential. The use of psychedelics has also been associated with significant sympathomimetic effects in both experimental and clinical studies. Therefore, the present review aims to provide a critical discussion of the cardiovascular safety of psilocybin, d-lysergic acid diethylamide (LSD), N,N-dimethyltryptamine, ayahuasca, and mescaline, based on the results of experimental research and clinical trials in humans. Experimental studies provide inconsistent information on the potential cardiovascular effects and toxicity of psychedelics. Data from clinical trials point to the relative cardiovascular safety of psychedelic-assisted therapies in the population of "healthy" volunteers. However, there is insufficient evidence from therapies carried out with microdoses of psychedelics, and there is still a lack of data on the safety of psychedelics in the population of patients with cardiovascular disease. Therefore, the exact determination of the cardiovascular safety of psychedelic therapies (especially long-term therapies) requires further research.

Palliative Nursing and Sacred Medicine: A Holistic Stance on Entheogens, Healing, and Spiritual Care.

The fields of palliative and holistic nursing both maintain a commitment to the care of the whole person, including a focus on spiritual care. Advanced serious illness may pose a plethora of challenges to patients seeking to create meaning and purpose in their lives. The purpose of this article is to introduce scholarly dialogue on the integration of entheogens, medicines that engender an experience of the sacred, into the spiritual and holistic care of patients experiencing advanced serious illness. A brief history of the global use of entheogens as well as a case study are provided. Clinical trials show impressive preliminary findings regarding the healing potential of these medicinal agents. While other professions, such as psychology, pharmacy, and medicine, are disseminating data related to patient outcomes secondary to entheogen administration, the nursing literature has not been involved in raising awareness of such advancements. Research is illustrating their effectiveness in achieving integrative experiences for patients confronting advanced serious illness and their ability to promote presence, introspection, decreased fear, and increased joy and acceptance. Evidence-based knowledge surrounding this potentially sensitive topic is necessary to invite understanding, promote scientific knowledge development, and create healing environments for patients, nurses, and researchers alike.

Dark Classics in Chemical Neuroscience: Mescaline.

Archeological studies in the United States, Mexico, and Peru suggest that mescaline, as a cactus constituent, has been used for more than 6000 years. Although it is a widespread cactus alkaloid, it is present in high concentrations in few species, notably the North American peyote ( Lophophora williamsii) and the South American wachuma ( Trichocereus pachanoi, T. peruvianus, and T. bridgesii). Spanish 16th century chroniclers considered these cacti "diabolic", leading to their prohibition, but their use persisted to our days and has been spreading for the last 150 years. In the late 1800s, peyote attracted scientific attention; mescaline was isolated, and its role in the psychedelic effects of peyote tops or "mescal buttons" was demonstrated. Its structure was established by synthesis in 1929, and alternative routes were developed, providing larger amounts for pharmacological and biosynthetic research. Although its effects are attributed mainly to its action as a 5-HT2A serotonin receptor agonist, mescaline binds in a similar concentration range to 5-HT1A and α2A receptors. It is largely excreted unchanged in human urine, and its metabolic products are apparently unrelated to its psychedelic properties. Its low potency is probably responsible for its relative neglect by recreational substance users, as the successful search for structure-activity relationships in the hallucinogen field focused largely on finding more potent analogues. Renewed interest in the possible therapeutic applications of psychedelic drugs may hopefully lead to novel insights regarding the commonalities and differences between the actions of individual classic hallucinogens.

Charcot, Mitchell and Lees: neurology free thinkers and their experiences of psychoactive drugs.

Three world-famous neurologists, Charcot and Mitchell, in the 19th century, and Lees, in this century, all of whom had great scientific curiosity, experimented with the psychoactive drugs hashish, mescal and yagé, respectively, in an attempt to increase their knowledge of neurological diseases and how the brain works.

Charcot, Mitchell and Lees: neurology free thinkers and their experiences of psychoactive drugs / Charcot, Mitchell e Lees: livres-pensadores da neurologia e suas experiências com drogas psico-ativas

ABSTRACT Three world-famous neurologists, Charcot and Mitchell, in the 19th century, and Lees, in this century, all of whom had great scientific curiosity, experimented with the psychoactive drugs hashish, mescal and yagé, respectively, in an attempt to increase their knowledge of neurological diseases and how the brain works.

RESUMO Três mundialmente famosos neurologistas, Charcot e Mitchell, no século XIX, e Lees neste século, tiveram eles mesmos, experiências com drogas psico-ativas, com haxixe, mescalina e yagé, respectivamente, demonstrando a sua intensa curiosidade científica, na tentativa de aprimorar o seu conhecimento da função cerebral e das doenças neurológicas.

Usos terapéuticos de sustancias prohibidas: LSD, MDMA, THC, GHB, DMT, psilocybina y mescalina / Therapeutic uses of prohibited substances: LSD, MDMA, THC, GHB, DMT, psilocybin, mescaline

El presente texto hace un breve recorrido sobre los usos terapéuticos que han tenido la LSD, MDMA, THC, GHB, DMT, Psilocybina y Mescalina en la historia, así como también refiere algunos de los beneficios para la salud física y mental que se considera tienen en la actualidad. Esta información científica se contrapone a la normativa internacional en materia de drogas, que las clasifica como sustancias prohibidas en la Lista I, debido a su falta de uso médico aceptado por Estados Unidos y a su alto potencial de abuso. En este trayecto también se intenta comprender a qué hace referencia dicho potencial, así como las motivaciones que podrían existir detrás de la prohibición del uso terapéutico de estas drogas. En este marco, se consideran consecuencias para la salud de la población, las que atentan contra los Derechos Humanos de las personas que podrían requerir alguna de estas sustancias.

This paper makes a brief of the therapeutic uses have had the LSD, MDMA, THC, GHB, DMT, Psilocybin and Mescaline in history, as well as some of the benefits referred to physical and mental health that are considered today. This scientific information seems contrary to international legislation on drugs, which classifies as prohibited substances in Schedule I, due to its lack of acceptance medical use by the United States and its high potential for abuse. In this way also try to understand what makes this potential reference, and the reasons that could be behind the ban on therapeutic use of these drugs. In this framework, we consider health consequences of the population, which violate the human rights of people who may require some of these substances.

[Mescaline and the San Pedro cactus ritual: archaeological and ethnographic evidence in northern Peru]. / Mescalina y ritual del cactus de san Pedro: evidencias arqueológicas y etnográficas en el norte de Perú.

INTRODUCTION: The San Pedro cactus contains the alkaloid mescaline and other derivates of phenethylamine with hallucinogenic properties. This cactus was used throughout history by a number of different pre-Columbine cultures and civilisations that settled in northern Peru. In this article we review the ethno-archaeological and ethno-historical evidence of the ritual use of the San Pedro cactus in the pre-Columbine cultures, and these findings are compared with the information provided by current ethnographical studies. DEVELOPMENT: The longer a cactus has been stored, the stronger and the higher its content in mescaline-derived alkaloids will be. Archaeological evidence has been found of the use of San Pedro for magical-religious purposes in the following pre-Columbine cultures: Cupisnique (1500 BC), Chavin (1000 BC), Moche (100-750 AD) and Lambayeque (750-1350 AD). Today's master shamans use San Pedro on altars ('mesas') erected for healing rites in order to treat enchantment and bad luck. The mesa follows a sophisticated ritual: 'levantar' (raise) or sniff tobacco with alcohol, ingest San Pedro, pinpoint the diseases, cleanse the evil and 'florecer' (flourish) the sick person. The mesa rite is performed in the early hours of Tuesdays and Fridays, which are sacred days in the Andean religions. San Pedro is sometimes replaced by an infusion of plants and seeds that contain hallucinogenic components, such as ayahuasca and the 'mishas' (Brugmansia sp.). CONCLUSIONS: The ancient tradition of using the San Pedro cactus for healing and hallucinogenic purposes has remained part of the culture in Andean shamanism up to the present day.

Jesus, peyote, and the holy people: alcohol abuse and the ethos of power in Navajo healing.

Of the three religious healing traditions that coexist within the contemporary Navajo health care system, the Native American Church (NAC) and Pentecostal Christianity are more actively involved in the treatment of alcohol and substance abuse than is Traditional Navajo healing. This article examines these two more recent healing traditions as religious responses to the contemporary Navajo crisis of alcohol and substance abuse as well as to socioeconomic changes. These traditions offer new kinds of power, social networks, and personal meaning that facilitate a transformation of self, a revitalized sense of community, and a new vision of the possibilities of the future for Navajo people who suffer. Examining the ethos of power that underlies Navajo healing can complement the theoretical emphasis on harmony and beauty in anthropological research on Navajo culture and religion.

Rethinking the role of diagnosis in Navajo religious healing.

Diagnosis plays a central, primary role in the therapeutic process across cultures. In this article, the authors examine the role of diagnosis in two Navajo religious healing traditions, the Traditional Navajo religion and the Native American Church (NAC), and examine a case study of a diagnostic encounter between an NAC diagnostician and a Traditional patient. The authors assert that, for Navajos, diagnosis is not merely a prescriptive rite that passively initiates the therapeutic process (as it has been seen in the Navajo literature) but can itself constitute a cure. Claims made about the similarity between Western psychotherapy and religious healing both by scholars and by the healer and patient in this case study are investigated. The authors conclude that such an analogy must be seen against the backdrop of Navajo beliefs about thought, speech, and health. Viewing diagnosis as a "talking cure" and an example of Good's concept of "narrativizing" illness (things it shares with Western psychotherapy) suggests why the analogy is appealing for Navajos themselves.

The role of hallucinogenic drugs and sensory stimuli in Peruvian ritual healing.

On Peru's north coast, curanderos perform night-long curing ceremonies in which the mescaline-bearing cactus San Pedro is used. The concept of autonomic nervous system tuning is presented as the best explanation for the overall physiological effect of the ritual. An assessment of the possible therapeutic impact of this condition is provided. Organic response and symbolic message are seen to resonate in the purificatory connotations of the ritual.

[Effect of psychotomimetics and haloperidol on head twitching following alcohol withdrawal in mice]. / Die Wirkung von Psychotomimetika und Haloperidol auf das Kopfzucken nach Alkoholentzug bei Mäusen.

After ethanol withdrawal dependent mice exhibited head twitching. The frequency of head-twitches was decreased by LSD and mescaline in a dose-dependent manner and increased by small doses of haloperidol and physostigmine. LSD antagonized the potentiating effects of haloperidol and physostigmine. The incidence of head-twitches after intracerebral injections of 5-HT in naive mice was lessened by LSD. The involvement of dopaminergic, serotoninergic, and cholinergic transmission systems in the action of psychotomimetics is discussed.