To support ongoing clinical trials, the major human metabolites of psilocybin were synthesized on a preparative scale, specifically psilocin-O-glucuronide and 4-hydroxyindole-3-acetic acid (4-HIAA), along with putative minor metabolites and several deuterium-labeled derivatives. Psilocybin, psilocin, psilocin-O-glucuronide, and 4-HIAA were assayed for engage...
Psychedelics have emerged as potential therapeutics for substance use disorders, yet preclinical data validating their efficacy remain limited. Here, we investigated the effects of a clinically inspired dose-escalation protocol of psilocybin and ibogaine on extinction and cue-induced reinstatement in Wistar male rats following intravenous cocaine self-admini...
Psilocybin, a classic psychedelic compound, has garnered renewed interest as a potential treatment for various psychiatric disorders. This review provides a comprehensive overview of psilocybin's history, recent clinical evidence, ongoing clinical trials, neuroimaging findings, and regulations. Historically used in spiritual and healing rituals, psilocybin w...
In Canada, the use of both prescription medications and psychedelics has become increasingly prevalent. As of 2022, approximately 16.5% of Canadians-about 6.3 million individuals-were prescribed at least one antidepressant, with fluoxetine remaining one of the most commonly used options (IQVIA, 2023). Benzodiazepine use, including drugs like alprazolam, rang...
Psilocybin is a hallucinogen with complex neurobiological and behavioral effects. Underlying these effects are changes in brain neuroplasticity. We hypothesized psilocybin given during adolescence, a time of heightened neuroplasticity, particularly in the forebrain, would affect emotional behavior and the associated underlying neuroanatomy, neurocircuitry, a...
We carried out a systematic review of modern-era (1990-2025) placebo-controlled studies assessing the acute and post-acute effects of lysergic acid diethylamide, dimethyltryptamine and psilocybin on cognitive and psychological functions. From February 28 to March 19, 2025, PubMed and APA PsychINFO were systematically searched for placebo-controlled studies e...
Psilocybin is the primary psychoactive compound in "magic mushrooms"; it has been used by humans for millennia, it is in promising clinical trials with humans and used in legalized psilocybin-assisted therapy, and researchers use and are further developing human-based methods with cutting-edge technologies.However, researchers are still allowed to conduct un...
Abstract Background and aims Despite growing popularity and increasing legal access, psychedelic therapy remains financially inaccessible to many. This study was designed to test the feasibility of conducting group psilocybin therapy in low-income adults with depression in Oregon's regulated psilocybin program. Methods An open label, uncontrolled design was ...
Psilocin, a naturally occurring hallucinogenic component of magic mushrooms, exerts notable psychoactive effects in both humans and rodents. However, the underlying mechanisms remain not fully understood. Blood-oxygenation level-dependent (BOLD) functional magnetic resonance imaging (fMRI) is a valuable tool in many preclinical and clinical trials for invest...
Psychedelics, particularly psilocybin, have shown therapeutic potential across several psychiatric conditions, including depression, anxiety, obsessive-compulsive disorder, and anorexia nervosa (AN). These disorders often share social deficits that may be effectively alleviated by psychedelics considering their use has been linked with emotional empathy and ...
Introduction: Cognitive flexibility is essential for behavioral adaptation in response to environmental changes and is impaired in various neuropsychiatric disorders. The serotonergic psychedelic psilocybin has shown potential in enhancing cognitive flexibility, although with mixed results. In this study, we investigated the effects of psilocybin on cognitiv...
As psychedelic-assisted psychotherapy gains momentum, clinical investigation of next-generation psychedelics may lead to novel compounds tailored for specific populations. 2,5-dimethoxy-4-bromophenethylamine (2C-B) is a psychedelic phenethylamine reported to produce less dysphoria and subjective impairment than the psychedelic tryptamine psilocybin. Despite ...
Clinical investigations into the therapeutic actions of psilocybin have been the focus of much attention in recent years as duly cited in the manuscript.The authors of the present manuscript discuss potential targets through which psilocybin may help prevent suicide using computational network pharmacology coupled with molecular docking investigations.Unfort...
Psilocybin is a psychoactive chemical compound that exerts its effects through the activation of serotonergic receptors. It occurs naturally in mushrooms of the genus Psilocybe. Despite its potential medical applications, this substance is regarded as a drug with no recognized medical use. Depression constitutes a psychiatric disorder of substantial global b...
