Nutt et al. recently proposed a common lexicon for psychedelic science including dosing categories for different forms of psychedelic use across multiple substances. Although common dosing terminology is an important advance, this paper identifies four challenges with Nutt et al.'s proposed categories. First, microdosing was defined as subperceptual; however, in both scientific and naturalistic...
Laws to control drugs have been progressively introduced since the early twentieth century to reduce non-medical use and drug-associated harm. Restrictions on what are now deemed ‘controlled drugs’ and, in New Zealand, ‘prohibited plants’ unjustly impact both medical care and research. The impact on research has frequently been cited in reference to the use of drugs in clinical research, such...
The Five Dimensional Altered States of Consciousness (5D-ASC) Rating Scale is a self-report measure used to characterize changes in consciousness induced by pharmacological (e.g., psychedelics) and non-pharmacological methods (e.g., meditation), and predict clinical outcomes. Although it has been widely used with English-speaking participants, there is no version that has been adapted for...
Although psychedelics have shown therapeutic potential in treating conditions such as depression, PTSD, and addiction, concerns remain regarding ethical practices, participant diversity, and the structural limitations of prevailing theoretical frameworks. This theoretical framework critically examines the dominant biopsychic model that underpins much of contemporary psychedelic research and...
Psychedelics are undergoing a clinical research renaissance, with compounds such as psilocybin advancing to Phase 3 trials for treatment-resistant depression and receiving fast-track or breakthrough designations from regulatory agencies. Despite this progress, the field lacks standardized terminology to guide clinical development, dosing, safety monitoring, and regulatory classification. Here,...
Current regulation frameworks for medicines struggle to address the combination of pharmacological and psychotherapeutic elements in psychedelic therapy. We propose a more appropriate and advantageous approach may be to regulate psychedelic drugs as therapeutic tools or adjuncts to psychotherapy, rather than as treatments for specific mental disorders. Drawing parallels with anesthetics, which...
Although there is growing support for the protective effects of psychedelics on mental health, recent evidence finds racial and ethnic minorities gain fewer benefits. This paper aims to test whether the disparate mental health outcomes associated with psychedelic use extend across multiple racial and ethnic groups, including non-Hispanic Whites, Blacks, Asians, and Hispanics. In order to...
Psychedelic drug policy is changing, both in the USA and internationally. However, psychedelic use is not homogeneous, as there are multiple unique contexts for use, including clinical therapies, naturalistic use, and microdosing. There are notable differences between these contexts regarding emerging evidence for safety, therapeutic efficacy, likely future legality, and more. We compared...
Although there is a growing support for the protective factor of psychedelics to improve mental and physical health, these effects may differ across racial and ethnic groups. Race differences remain a critically understudied gap in psychedelic literature. Recent empirical research into Minority Diminished Psychedelic Returns suggests that Black Americans may gain little health benefits from...
Challenging experiences in ayahuasca use, childhood trauma, and posttraumatic growth have not been investigated systematically. This study aimed to explore whether a self-reported history of childhood trauma was associated with challenging experiences during acute ayahuasca effects and whether such challenging experiences were associated with beneficial long-term outcomes measured by...
Indigenous Amazonian shamanic ayahuasca practice is embedded in a nature-based context and is employed as an ecological mediating agent and in collective environmental decision-making processes by some of the groups that use it. Phenomenologically, the ayahuasca experience is often rich in nature-based themes and content, and its usage has been associated with eliciting shifts in perspectives...
The emergence of a so-called psychedelic renaissance has been proposed to characterize the revival of research into (psycho-)therapies using psychedelic drugs. In Europe, the most widespread approach employed in the 1960s and 1970s that involved the use of drugs like LSD and psilocybin as an adjunct to psychotherapy was named according to its main theoretical framework, that is, psychoanalysis...
The prevalence of 3,4-methylenedioxymethamphetamine (MDMA) consumption is relatively high in Aotearoa New Zealand, but MDMA use has not been investigated in detail. We explored consumption behaviours and a range of MDMA-related factors, including motivations, subjective effects, and reflections about personal MDMA use via a cross-sectional survey. A total of 1180 respondents (59.2% female, 15%...
Background Recent survey data indicate that some people report long-term improvement in color vision deficiency (CVD), also known as color blindness, following use of psychedelics such as lysergic acid diethylamide (LSD) and psilocybin. However, there are no objective data reported in the medical literature quantifying the degree or duration of CVD improvement associated with psychedelic use....
Rising international migration, paired with increasing public support for far-right political parties, poses a growing challenge to the countries tasked with successfully integrating immigrants into their society. Further complicating this matter is the fact that the acculturation process which immigrants undergo to fully integrate into their host society can be long, difficult, and taxing to...
The unprecedented progress in the science and clinical investigation of psychedelic medicine will require those in healthcare leadership and the legislative policy arena to conceptualize how future reforms, policy creation, and clinical practice should occur to broaden access to these agents while simultaneously maximizing effectiveness and mitigating harm. The pharmacy profession has...
Background PTSD in adolescence causes much suffering and has substantial health-care costs. Many patients with severe PTSD do not respond to psychotherapy or continue to have symptoms despite trauma-focused psychotherapies and psychopharmacological treatment. A recent alternative in the search for cost-effective treatments for PTSD in adults is 3,4-methylenedioxymethamphetamine-assisted...
Since its discovery in 1943, LSD has been used by artists, scientists, and intellectuals, amongst others, to stimulate their creative insights. Federico Fellini, one of the most important film directors in the XX century, used LSD when it was still legal under the guidance of his psychoanalyst during a phase of personal and creative crisis. This article proposes a phenomenological analysis of...
Background The potential benefits of ayahuasca on mental health conditions are well documented. This pilot study is the first to explore whether there is an association with ayahuasca use and reductions in inattention, hyperactivity and impulsivity, the core features of attention-deficit/hyperactivity disorder. Methods In this exploratory, observational pilot study, the Adult...
In recent years, the historical record of psychedelic therapy in Europe and the Americas has undergone considerable revision. In this article, we contribute to this re-interpretation by sharing documentation relating to psychedelic therapy carried out in Italy during the period 1927–1966. Our library research has uncovered one hundred publications, documenting at least 60 clinical studies in...
Although there is a growing support for the use of psychedelics to improve the health of marginalized groups, there are some critical gaps. First, no empirical studies have examined the effects of psychedelics on Black Americans. Second, there is little research on population effects of psychedelics. Third, little research has tested how cultural set and setting may affect the relationship...
This systematic review investigates whether clinical trials of psilocybin support criterion number three of the drug's schedule I designation: There is a lack of accepted safety for use of the drug or other substance under medical supervision. Data were collected by using the PubMed database and conducting a search on November 24, 2021, with the search term psilocybin and applying the clinical...
Creativity, that is the creation of ideas or objects considered both novel and valuable, is among the most important and highly valued of human traits, and a fundamental aspect of the sciences. Dreams and hypnagogic states have been highly influential in promoting scientific creativity and insight, contributing to some important scientific breakthroughs. Phenomenologically, the latter states of...
Lifetime psychedelic substance use has previously been linked to nature relatedness and pro-environmental behaviour. Yet, participants’ responses to the self-report measures in these studies may have been affected by stereotypical associations or confirmation bias. We therefore re-examined this link by measuring three pro-environmental dependent variables: nature relatedness, concerns about...
The recent surge in recreational (non-medical) use of nitrous oxide (N 2 O, also known as ‘laughing gas’) often by inhaling it from balloons, has attracted the attention of some politicians with calls to control its possession under the United Kingdom (UK) Misuse of Drugs Act 1971 (currently selling, but not possession, for recreational use is controlled under the Psychoactive Substances Act...