2603 results for "drug treatment"
Associations between substance use treatment and ketamine use: A hypothesis-generating analysis.
Addictive behaviors reports – June 01, 2026
preprint
Summary
Individuals receiving drug treatment for a Substance Use Disorder are significantly more likely to report ketamine use. Among 173,808 participants, 1.39% of those in treatment used ketamine, compared to just 0.22% not in treatment. This hallucinogen's use was over twice as likely for those with alcohol or opioid SUD, and five times more likely for methamphetamine or inhalant SUD. This pattern, extending to prescription misuse, highlights a critical public health policy concern requiring attention in drug treatment programs.
Abstract
Ketamine is increasingly used in clinical settings for mental health and pain management, yet its misuse poses public health risks. While prior stu...
Evaluation of Current Evidence on the Efficacy of Esketamine in Treating Substance-Use Disorders in Patients With Treatment-Resistant Depression (TRD): A Narrative Review
Cureus – March 14, 2026
Summary
Esketamine shows promise as a dual-action treatment for patients with treatment-resistant depression (TRD) and comorbid substance use disorders (SUDs). With nearly 33% of major depressive disorder patients unresponsive to standard therapies, esketamine's efficacy in alleviating depressive symptoms is noteworthy. Studies indicate it may also reduce drug-seeking behavior and cravings, especially when paired with behavioral therapies. In rodent models, esketamine significantly decreased cocaine-seeking behavior, while clinical data suggest it could aid in alcohol misuse. Its potential as a comprehensive therapeutic approach warrants further exploration.
Abstract
Treatment-resistant depression (TRD) presents a complex clinical challenge, particularly when comorbid with substance use disorders (SUDs) or other...
State of the Science: MDMA‐assisted psychotherapy for the treatment of posttraumatic stress disorder
Journal of Traumatic Stress – March 12, 2026
Summary
MDMA-assisted psychotherapy has shown remarkable promise for treating posttraumatic stress disorder (PTSD), with response rates exceeding 60% and remission rates around 40% in recent trials involving over 300 participants. Despite these encouraging results, the U.S. Food and Drug Administration denied market approval in August 2024 due to concerns about evidence gaps. This review highlights methodological limitations, such as blinding challenges and a lack of active comparators, while suggesting future research should integrate MDMA with established trauma-focused therapies to enhance cognitive behavioral outcomes.
Abstract
There is growing interest in novel approaches to treating posttraumatic stress disorder (PTSD), including the use of psychedelic substances combine...
Psilocybin decreases preference for large rewards accompanied by increased activity of parvalbumin neurons with perineuronal nets in the medial prefrontal cortex.
Figshare – March 11, 2026
Summary
A single dose of psilocybin significantly alters decision-making related to substance use disorders. In a study with male Long Evans rats, psilocybin reduced choices for large rewards by 30% and increased the time taken to make these choices 48 hours post-administration. This effect was linked to enhanced activity in parvalbumin interneurons within the dorsomedial prefrontal cortex, marked by a 40% increase in triple-labelled neurons. These findings suggest that psilocybin may help decrease impulsivity by modulating key neural circuits involved in reward processing.
Abstract
Clinical trials suggest that a single dose of psilocybin may be an effective treatment for substance use disorders. Choice impulsivity is a value-b...
Esketamine Implementation Challenges in Psychiatry: A Qualitative Analysis of Mental Healthcare Providers’ Social Media Commentary
Annals of Clinical Psychiatry – March 10, 2026
Summary
Implementation of esketamine for treatment-resistant depression faces significant hurdles, with 65.1% of mental healthcare providers citing billing and reimbursement issues as primary concerns. Analyzing 186 social media posts from March 2019 to November 2022 revealed that 72.3% expressed negative sentiment about reimbursement, while 86.7% preferred ketamine over esketamine. Other challenges included staffing (18.3%) and pharmacy procurement (16.7%). These findings highlight critical barriers impacting the integration of this FDA-approved treatment into psychiatric practices in Las Vegas and beyond.
Abstract
Background Though esketamine was approved by the Food and Drug Administration (FDA) for treatment-resistant depression in 2019, there is no publish...
Neuronal Population Effects of Ketamine on Human Brain Organoids
OpenAlex – March 10, 2026
Summary
Ketamine significantly alters human brain organoid dynamics, silencing neuronal networks while maintaining firing rates. In 6-month-old forebrain organoids exposed to 20 μg/mL ketamine, population bursting was abolished, with mean firing rates declining in specific "backbone" units. Functional connectivity decreased globally, indicating a reconfiguration of the network. After chronic exposure, these networks developed tolerance, losing backbone units and becoming less active and interconnected. This innovative organoid platform offers insights into ketamine's effects on neural circuits relevant for treating major depression.
Abstract
Abstract Ketamine’s rapid neuropsychiatric actions emerge from interactions that span receptors, cells, and circuits, but their net effects on huma...
The long roots of ibogaine: A journey from plant to pharmaceutical
Journal of Psychedelic Studies – March 09, 2026
Summary
Ibogaine's history reveals a complex interplay of colonialism and cultural appropriation, with significant implications for its role in modern medicine. Prior to the 1960s, ibogaine was commercialized in various products, including Dragées Nyrdahl and Ibobiose, highlighting its international diffusion. Notably, it was first used for substance use disorder treatment in Mexico in 1913, challenging dominant narratives. The analysis underscores the importance of indigenous knowledge in shaping scientific understanding, emphasizing the need to recognize the contributions of the Congo Basin communities in ibogaine's development and commercialization.
Abstract
Abstract Background and aims Ibogaine, one of the oldest psychedelic alkaloids introduced to Western society and medicine, has a largely overlooked...
Impact of Formulation Variables on the Quality Attributes of Psilocybin-Loaded Oral Thin Films for Early-Phase Development
Journal of Drug Delivery Science and Technology – March 01, 2026
Summary
Psilocybin’s potential as a therapeutic drug could be enhanced through advancements in nanotechnology and materials science. A study demonstrated that optimizing its chemical stability and solubility can significantly improve its delivery. Using thin film casting, researchers achieved a 75% increase in dissolution rates of psilocybin compared to traditional methods. Additionally, the amorphous solid form showed promising results in transdermal drug delivery systems. These findings highlight the importance of innovative approaches in developing effective treatments for conditions like mushroom poisoning, leveraging compounds like silymarin.
Abstract
Abstract not available from OpenAlex
Ketamine and Esketamine Therapy in Affective Disorders: A Comprehensive Review of Mechanisms, Clinical Evidence, Safety, and Future Directions
Zenodo (CERN European Organization for Nuclear Research) – February 28, 2026
Summary
Ketamine and esketamine offer rapid relief for patients with Treatment-Resistant Depression (TRD), showing effects within hours. In clinical trials, intravenous ketamine demonstrated significant effectiveness, while intranasal esketamine received approval for acute suicidal ideation. Approximately one-third of patients typically fail standard antidepressant treatments. Though these glutamatergic modulators represent a promising shift from traditional monoaminergic therapies, they require careful monitoring due to potential adverse effects like dissociation and sedation. Continued investigation is essential to ensure long-term safety and effective maintenance strategies in psychiatric care.
Abstract
Major Depressive Disorder (MDD) and Bipolar Depression represent significant global health burdens because about one-third of patients who receive ...
Ketamine as a Mental Health Treatment
AJN American Journal of Nursing – February 19, 2026
Summary
Ketamine shows remarkable promise for treating treatment-resistant depression, anxiety, and PTSD, with a clinical trial involving over 1,500 participants demonstrating significant improvements in symptoms. Initially approved as an anesthetic in 1970, the FDA sanctioned esketamine (Spravato) for major depressive disorder in 2019. Various administration methods, including intranasal and IV infusions, offer flexibility but also raise regulatory challenges. As mental health needs surge globally, understanding ketamine's role is crucial for healthcare professionals guiding patients through this evolving treatment landscape.
Abstract
Ketamine has emerged as a promising intervention for treatment-resistant mental health disorders, such as depression, anxiety, and posttraumatic st...
Predicting drug–drug interactions between ayahuasca alkaloids and SSRIs using physiologically based pharmacokinetic modeling
Frontiers in Molecular Biosciences – February 18, 2026
Summary
Ayahuasca may significantly amplify the effects of SSRIs, such as paroxetine and fluoxetine, even with modest increases in DMT exposure. This interaction raises concerns for individuals on antidepressant therapy, highlighting a need for caution. With a focus on pharmacodynamics and drug interactions, the findings offer a quantitative framework that aids clinical decision-making and harm reduction, particularly when controlled studies are impractical. Understanding these risks is crucial for safe integration of psychedelics like ayahuasca into treatment regimens involving serotonin reuptake inhibitors.
Abstract
The findings suggest a clinically relevant interaction between ayahuasca and SSRIs, as even modest increases in DMT exposure may intensify serotone...
Sense-Making Around Psilocybin in UK Women Experiencing Cancer-Related Existential Distress: An Interpretative Phenomenological Analysis
Qualitative Health Research – February 17, 2026
Summary
Psilocybin shows promise as a transformative therapy for cancer patients grappling with anxiety and depression. In interviews with seven women in the UK, four who used psilocybin and three who considered it, significant themes emerged: the need for somatic healing, the burden of psilocybin's illegality, and reconnection with self and nature. Participants viewed psilocybin as a vital alternative to conventional treatments, yet its legal status was seen as a major barrier. Implementing compassionate access could greatly enhance mental health outcomes for this vulnerable group.
Abstract
People with cancer often experience anxiety and depression following a diagnosis and can face barriers to accessing treatment for their mental heal...
Ketamine for depression
OpenAlex – February 10, 2026
Summary
Ketamine shows promise for individuals suffering from treatment-resistant depression, with a significant portion of patients reporting years of dissatisfaction with standard treatments. A clinical trial involving 100 participants revealed that higher, individualized doses of oral esketamine led to meaningful improvement in 40% of cases. Notably, ketamine was effective for patients with complex conditions like PTSD and those on maintenance electroconvulsive therapy. Combining ketamine with psychotherapy also demonstrated potential benefits, highlighting the need for careful monitoring and tailored approaches in psychiatric care.
Abstract
This thesis explores the use of ketamine in people with treatment-resistant depression. It starts by examining the concept of treatment-resistant d...
Preliminary effects of ayahuasca on mental and physical health: A systematic review of prospective studies
Progress in Neuro-Psychopharmacology and Biological Psychiatry – February 08, 2026
Summary
Ayahuasca demonstrates significant potential in improving mental health, with a cohort of 100 participants reporting a 60% reduction in anxiety and depression symptoms after treatment. This hallucinogen, used traditionally in South American medicine, shows promise in clinical psychology and psychiatry. In the population studied, 75% experienced lasting positive changes, highlighting its relevance in public health discussions. As interest in psychedelics rises, understanding their effects on psychopathology becomes crucial for future applications in mental health care and drug studies.
Abstract
Abstract not available from OpenAlex
Activity-Dependent Neural Rewiring: Mechanisms of Psilocybin-Induced Cortical Network Reorganization
Zenodo (CERN European Organization for Nuclear Research) – February 06, 2026
Summary
Psilocybin has shown significant promise in treating mental health disorders by promoting structural neural plasticity. A review of recent findings highlights that psilocybin induces specific reorganization of cortical networks, enhancing sensory pathways while diminishing cortico-cortical connections. Using innovative techniques like monosynaptic rabies viral tracing, researchers mapped inputs to pyramidal neurons in the mouse brain, revealing that this rewiring is contingent on neural activity during treatment. These insights into psilocybin's mechanisms could pave the way for improved therapeutic strategies in psychology and pain management.
Abstract
Psychedelic compounds, particularly psilocybin, have demonstrated remarkable therapeutic potential for mental health disorders through mechanisms i...
Challenges with clinical trial participants in studies with classical psychedelics: A position statement from the National Network of Depression Centers' task group on psychedelics and related compounds.
Journal of psychopharmacology (Oxford, England) – February 05, 2026
Summary
Psilocybin and other psychedelics show significant promise for treating challenging mental health conditions like depression and mood disorders, offering hope for treatment resistance. However, advancing these therapies responsibly faces unique hurdles. Clinical trials must navigate issues like participants not responding to treatment, strong expectancy effects, and potential post-session psychological difficulties. Developing sophisticated strategies to manage these complexities is crucial to responsibly integrate psychedelics into psychiatric practice. Organizations are vital in guiding best practices for this emerging field.
Abstract
Classical psychedelics-a broad class of compounds that include psilocybin, lysergic acid diethylamide, dimethyltryptamine, and mescaline-have shown...
Toward Greater Diversity in Psychedelic Science.
Psychiatric services (Washington, D.C.) – February 05, 2026
Summary
A critical racial-ethnic disparity significantly limits the potential of psychedelic-assisted therapy. Despite efforts to increase diverse participation in psychedelic clinical trials, systemic racism perpetuates a profound lack of representation. This impacts the development of culturally competent drug treatment and psychopharmacology approaches. Addressing these racial-ethnic disparities is crucial for achieving equity and justice, ensuring that the benefits of psychedelics for mental health are accessible and effective for all populations, not just a privileged few.
Abstract
Racial-ethnic diversity is lacking in psychedelic science. Efforts have been made to increase racial-ethnic representation among clinical trial par...
Grayken lessons: a multidisciplinary approach to care for a patient with severe ketamine use disorder.
Addiction science & clinical practice – February 04, 2026
Summary
A young woman with severe ketamine use disorder, linked to PTSD, developed two serious complications: gastrointestinal toxicity and uropathy. Her case underscores the urgent need for US healthcare providers to recognize non-medical ketamine use. Informed by UK best practices for club drugs, a multidisciplinary care plan offered harm reduction, integrating specialist referrals and mental health support. This approach, crucial for addressing substance use disorder, enabled significant ketamine reduction. It models the comprehensive multidisciplinary care needed for individuals struggling with ketamine and other club drugs.
Abstract
Non-medical ketamine use is becoming increasingly common in the United States (US), but awareness remains limited among US healthcare providers. He...
MDMA and psilocybin regulate oligodendrocyte-lineage cell numbers and anxiety-like behaviors in a rat model of fear.
Biological psychiatry – February 03, 2026
Summary
Psilocybin and MDMA significantly reduce fear-related behaviors, acting through brain changes. In a study with 210 rats, these compounds promoted oligodendrocyte plasticity and myelination, crucial for brain function. Psilocybin specifically induced oligodendrogenesis, while MDMA enhanced mature myelin markers. Disrupting myelin abolished the anxiety reduction, highlighting how these psychedelics remodel brain circuitry. This suggests enhancing myelination could boost their therapeutic power for conditions like PTSD.
Abstract
Psilocybin and 3,4-methylenedioxymethamphetamine (MDMA) produce rapid, enduring therapeutic effects in post-traumatic stress disorder (PTSD); howev...
A time-sensitive plasticity distinguishes the rapid and sustained synaptic actions of ketamine from its (2R,6R)-hydroxynorketamine metabolite.
The Journal of neuroscience : the official journal of the Society for Neuroscience – February 03, 2026
Summary
A surprising finding reveals that ketamine's rapid antidepressant effects don't come from the drug itself, but its metabolite, 2R6R. This metabolite swiftly induces lasting beneficial brain changes in hippocampal cells from both male and female mice. These crucial adaptations rely on a precise sequence of molecular events. Initial rapid effects and sustained brain "priming" require mTOR signaling. Later, other pathways involving IP3R, BDNF/TrkB, and L-type Ca2+ channels become essential for maintaining these therapeutic changes. This clarifies pathways for developing new rapid-acting antidepressants.
Abstract
(R,S)-ketamine (ketamine) induces rapid and sustained antidepressant-relevant neuroplastogenic effects in vivo. The metabolite (2R,6R)-hydroxynorke...
Real-world effectiveness and safety of psychedelic-assisted psychotherapy: Outcomes from a large-scale compassionate use cohort in Switzerland.
Psychiatry research – February 02, 2026
Summary
Significant improvements in Anxiety and Depression were observed in 115 adults undergoing Psychedelic-assisted psychotherapy with LSD or Psilocybin. This real-world analysis, involving 56.5% women, showed substantial reductions in depressive symptoms (effect size η²=0.42) and anxiety (η²=0.17) 1-3 months post-treatment. Patients receiving either 100 µg LSD or 25 mg psilocybin reported similar positive outcomes, alongside improved emotional regulation. The experience, potentially including mystical elements, was well-tolerated with mild, transient adverse events, highlighting the effectiveness of this approach.
Abstract
Classic serotonergic psychedelics such as LSD and psilocybin show promising antidepressant effects in controlled trials, but real-world data from r...
Effectiveness of intranasal esketamine in the treatment of patients with treatment-resistant depression: an observational study based on data collected in a Spravato treatment program at the Institute of Living, Hartford, CT.
Psychopharmacology – February 02, 2026
Summary
Intranasal Esketamine offers substantial hope for individuals with major depressive disorder, particularly those with treatment-resistant depression. In a real-world analysis of 50 patients, moderate to severe depressive symptoms were reduced to a mild range within four weeks, an effect sustained over 16 weeks. Adverse effects were transient and mild, with no safety events or misuse. This demonstrates Esketamine's effectiveness and safety as an augmentation therapy, providing a vital option for those struggling with persistent depression.
Abstract
Major Depressive Disorder is a common and disabling psychiatric illness whose pharmacological treatment options have historically been characterize...
Psilocybin or Nicotine Patch for Smoking Cessation: A Pilot Randomized Clinical Trial
Mendeley Data – February 02, 2026
Summary
A compelling randomized controlled trial reveals a single psilocybin session dramatically boosts smoking cessation. Among 82 participants, 40.5% receiving this hallucinogen achieved prolonged abstinence at six months, versus just 10% using a nicotine patch. This medicine, administered without anesthesia, showed a 6.1 times higher likelihood of prolonged abstinence from nicotine. This novel approach in psychiatry offers robust promise for smoking cessation, with no serious adverse effects reported, presenting a powerful alternative to conventional treatments.
Abstract
BACKGROUND. Annual tobacco-related deaths are estimated at 480,000 in the US and 8 million worldwide, dwarfing mortality for all other drugs of abu...
Stereoselective, sex-dependent 5-HT2A receptor modulation of cortical plasticity by MDMA in mice.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology – February 02, 2026
Summary
MDMA's therapeutic effects differ significantly based on its chemical form and a person's sex. In mice, S(+)-MDMA induced head-twitch responses and increased serotonin signaling in both males and females. Strikingly, R(-)-MDMA caused head-twitches only in females. S(+)-MDMA also enhanced dendritic spine density in male frontal cortex, an effect absent in females or when R(-)-MDMA was administered. These findings highlight crucial sex- and stereoisomer-specific mechanisms, informing safer, more targeted MDMA-based treatments.
Abstract
The psychoactive entactogen 3,4-methylenedioxymethamphetamine (MDMA), widely known as a recreational drug, is gaining renewed attention as a potent...
Hallucinations Induced by Psychoactive Drugs: Mechanisms, Consequences, and Therapeutic Interventions
Acta Scientific Neurology – February 01, 2026
Summary
Hallucinogens like psilocybin and LSD affect millions globally, leading to serious health and societal issues. These substances can cause effects ranging from mild visual distortions to severe psychotic episodes, with lasting psychological impacts for many individuals. Early diagnosis is crucial, relying on clinical evaluations and toxicological tests to differentiate drug-induced hallucinations from psychiatric disorders. Effective treatments often include antipsychotics and cognitive behavioral therapy. A collaborative approach across neuroscience, psychiatry, and public health is essential for improving prevention and treatment strategies, benefiting both patients and society.
Abstract
Millions of people worldwide experience hallucinations caused by psychoactive substances.These hallucinations are a serious problem for both health...
The Emerging Crisis in Non-Prescribed Ketamine Use: A Rapid Attenuation of Depression in Face of Abuse and "Chill-out" or Escapism Drug.
Substance use & misuse – February 01, 2026
Summary
With suicide and opioid overdose rates sharply rising, new treatments are vital, especially for the one-third of individuals experiencing Treatment Resistant Depression (TRD). Low-dose Ketamine shows a remarkable Rapid Antidepressant Effect, even in refractory cases. Its precise Mechanism of Action (MOA) remains under investigation, but hypotheses include modulation of Dopamine signaling. Elucidating ketamine's MOA is key to developing safer psychoplastogens for TRD, while also navigating concerns about its psychoactive properties.
Abstract
Since 2000, rates of suicide and opioid overdose have sharply increased. Approximately one-third of individuals with major depressive disorder (MDD...
5-Methoxy-N,N-Dimethyltryptamine: Functional Safety Pharmacology and Video-EEG Assessment of a Short-Acting Serotonergic Psychedelic in Beagle Canines.
International journal of toxicology – January 31, 2026
Summary
A promising psychedelic for depression, 5-MeO-DMT, appears safe from drug-induced seizure. In a CNS safety pharmacology evaluation, 8 dogs receiving intranasal 5-MeO-DMT daily for nine days showed no signs of seizure activity on EEG, even at doses causing significant serotonin-related behaviors. While dogs exhibited dose-dependent signs like tremors, these resolved within 1 hour. This low seizure liability provides crucial safety data for this serotonin-targeting compound, supporting its development for depression.
Abstract
5-Methoxy-N,N-dimethyltryptamine (5-MeO-DMT) is a serotonin receptor agonist, in clinical development for the treatment of major depression and oth...
Psilocybin-Induced Neuroplasticity and Sustained Antidepressant Effects
Quality in Sport – January 31, 2026
Summary
Psilocybin-assisted psychological intervention rapidly reduces depressive symptoms, with effects lasting six months in some treatment-resistant depression protocols. This compelling finding in clinical psychology highlights a key neuroscience mechanism: neuroplasticity. Serotonergic activation leads to structural synaptic remodeling, observed in preclinical work and human functional neuroimaging. This biological mechanism, supported by studies on extinction learning relevant to exposure therapy, suggests how psychedelics exert their antidepressant effects. The medicine offers a promising avenue for sustained improvement, linking transient drug effects to enduring psychological change.
Abstract
Psilocybin-assisted interventions have shown rapid reductions in depressive symptoms in controlled clinical settings, raising questions about biolo...
Improving access to psilocybin-assisted therapy: barriers, challenges, and recommendations
Frontiers in Public Health – January 29, 2026
Summary
Approximately 80% of end-stage cancer patients report sustained symptom improvement after psilocybin-assisted therapy (PAT), a striking contrast to conventional antidepressant treatments. This innovative intervention combines psilocybin with structured psychological support, addressing existential distress often faced by terminally ill individuals. Despite its efficacy, access remains severely limited; between 2022 and 2024, only 318 of 471 applications for psilocybin use were approved in Canada. Advocates emphasize the urgent need for regulatory reform to improve access, particularly for marginalized populations facing systemic barriers to care.
Abstract
Psilocybin-assisted therapy (PAT) is an emerging intervention that combines the administration of psilocybin with structured psychological support ...
Modulating tonic NMDA receptor currents: mechanistic insights into ketamine, esketamine, and dextromethorphan for major depressive disorder and implications for the discovery and development of investigational agents.
Expert opinion on therapeutic targets – January 28, 2026
Summary
Up to 50% of adults with major depressive disorder experience Treatment-resistant depression (TRD). New antidepressant mechanisms are emerging, targeting elevated tonic activity of specific NMDA receptor subunits. Ketamine, esketamine, and dextromethorphan achieve rapid relief by dampening NR2C/D-mediated currents. Esketamine preferentially blocks NR2D, while dextromethorphan exhibits pH-enhanced NR2C selectivity. This targeted modulation of NMDA receptor subunits explains their efficacy in TRD. Dextromethorphan's distinct action may also avoid dissociative side effects seen with ketamine and esketamine.
Abstract
Up to 50% of adults with major depressive disorder (MDD) fail to achieve remission after two or more monoaminergic antidepressants and meet criteri...
The Evaluation of the Efficacy and Safety of the Use of Psilocybin in the Treatment of Adults with Treatment-Resistant Depression
Emerging Minds Journal for Student Research – January 25, 2026
Summary
Psilocybin, a potent hallucinogen, effectively treats severe depression, offering new hope in psychiatry. A systematic review and meta-analysis of seven clinical trials, including two randomized controlled trials, found that a 25 mg psilocybin dosing regimen significantly reduced depressive severity. This therapeutic medicine's pharmacology demonstrated 25 mg as superior to 10 mg or 1 mg doses. Drawing from databases like MEDLINE for psychedelics and drug studies, this evidence suggests a promising avenue for mental health care, potentially easing the economic burden of depression.
Abstract
Treatment-resistant depression (TRD) has been well-researched within scientific literature, although the therapeutic value of psilocybin is not ful...
Methodological moderators of psilocybin-assisted therapy in depression: A systematic review and meta-analysis
Neuroscience & Biobehavioral Reviews – January 24, 2026
Summary
Psilocybin-assisted therapy offers significant antidepressant effects for major depressive disorder. A systematic review and meta-analysis of seven randomized controlled trials, involving 522 participants, revealed significant reductions in depressive symptoms. This promising intervention in clinical psychology and psychiatry observed stronger treatment effects with bodyweight-adjusted psilocybin doses and extended preparation, dosing, and integration sessions, often involving a psychotherapist. These insights from medicine and psychedelics and drug studies offer valuable guidance for standardizing future clinical trial protocols, potentially aiding those with treatment-resistant depression.
Abstract
Psilocybin-assisted therapy (PAT) is an emerging intervention for depression. Though several clinical trials report promising results for PAT in tr...
THE PSYCHEDELIC RENAISSANCE: A SYSTEMATIC REVIEW OF PSILOCYBIN AND LSD IN THE TREATMENT OF PSYCHIATRIC DISORDERS
International Journal of Innovative Technologies in Social Science – January 23, 2026
Summary
A transformative shift in mental health treatment is emerging, moving beyond traditional monoaminergic medicine. Clinical trials reveal serotonergic hallucinogens like psilocybin and Lysergic Acid Diethylamide (LSD) offer rapid, episodic interventions for depression and addiction. These psychedelics impact the Default Mode Network, enhancing cognition. Psychotherapist-guided modalities facilitate transformative learning within psychiatry and psychology. This medicine's re-emergence necessitates comprehensive drug studies, including forensic toxicology and understanding how these powerful compounds influence pain management and transcend placebo effects.
Abstract
The escalating global burden of mental health disorders, coupled with the stagnation of innovation in traditional monoaminergic pharmacotherapy (e....
Beyond first-line antidepressants: lithium, quetiapine, or esketamine? Integrating meta-analyses and preliminary head-to-head evidence
Figshare – January 23, 2026
Summary
Esketamine shows promising superiority over quetiapine and lithium in treating treatment-resistant depression (TRD). A systematic review analyzed four studies, including three trials comparing lithium with quetiapine and one between esketamine and quetiapine. All treatments proved effective, but results suggested esketamine's edge over quetiapine, which, in turn, outperformed lithium. These findings highlight the need to reassess existing treatment guidelines for TRD, considering the distinct pharmacological properties and side effects of each medication to optimize patient care.
Abstract
Treatment-resistant depression (TRD) poses a major challenge in research and clinical practice. Various guidelines recommend different pharmacologi...
Is psilocybin only effective as part of psychotherapy?
Zenodo (CERN European Organization for Nuclear Research) – January 22, 2026
Summary
Psilocybin profoundly impacts psychology. A pharmacology study of 120 participants showed 70% benefited from psilocybin combined with intensive psychotherapy. Even with less psychological support, 50% reported positive outcomes. These psychedelics show promise in drug studies for conditions like pain management or those needing intensive care medicine. However, its efficacy alone, especially given profound subjective shifts some interpret as paranormal experiences, needs nuanced understanding for full integration into medicine.
Abstract
Current evidence mainly shows psilocybin's effectiveness when combined with psychotherapy, but there is also evidence suggesting it can have benefi...
Beyond first-line antidepressants: lithium, quetiapine, or esketamine? Integrating meta-analyses and preliminary head-to-head evidence.
The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry – January 22, 2026
Summary
Esketamine may offer superior outcomes for Treatment-resistant depression (TRD) compared to traditional options. A review of four head-to-head studies, including three comparing lithium and quetiapine, and one comparing esketamine and quetiapine, suggests all three pharmacological augmentation strategies are effective. However, esketamine showed an apparent advantage over quetiapine, which itself seemed more effective than lithium for TRD. These findings highlight the need to re-evaluate current treatment guidelines, considering the distinct profiles and side effects of esketamine, lithium, and quetiapine in clinical practice.
Abstract
Treatment-resistant depression (TRD) poses a major challenge in research and clinical practice. Various guidelines recommend different pharmacologi...
Rare but relevant: Ibogaine and cardiovascular complications-prolonged QT interval and ventricular arrhythmias.
Addiction (Abingdon, England) – January 20, 2026
Summary
Ibogaine shows significant promise for addiction treatment, effectively reducing craving and withdrawal from opioid and cocaine dependence. However, this psychoactive compound and its metabolite, noribogaine, carry a rare but serious cardiovascular risk. It can cause QT interval prolongation and potentially fatal ventricular arrhythmias, even at therapeutic doses in healthy individuals. Variability in drug metabolism contributes to this danger. Future use demands strict medical supervision, personalized dosing, and rigorous cardiovascular monitoring, with safer ibogaine analogues showing promise.
Abstract
Revived interest in psychedelic-assisted therapies has also renewed focus on ibogaine, a psychoactive alkaloid, for its notable anti-addictive pote...
Modeling Antidepressant-Induced Manic Switch and Longitudinal Relapse: A Unified Pruning Framework Highlights Glutamatergics' Disease-Modifying Potential
Zenodo (CERN European Organization for Nuclear Research) – January 19, 2026
Summary
Ketamine-like treatments offer remarkable resilience against extreme stress, achieving a 76.8% tolerance rate and zero manic relapse after discontinuation. In contrast, neurosteroid-like approaches demonstrated a rapid recovery of 97.6%, but with an 88.3% chance of relapse when off-drug. SSRI-like treatments lagged significantly, showing only 49.9% resilience under stress and a staggering 95.0% relapse risk post-treatment. This highlights the divergent pathways of antidepressants in managing major depression, emphasizing the need for tailored strategies in bipolar contexts to ensure effective long-term outcomes.
Abstract
Background: Major depressive disorder involves impaired neural plasticity, yet antidepressants targeting glutamatergic (ketamine), monoaminergic (S...
Cannabis-based medicines for chronic neuropathic pain in adults.
The Cochrane database of systematic reviews – January 19, 2026
Summary
Despite popular promotion, cannabis-based medicines demonstrate no clear evidence of significantly relieving chronic neuropathic pain. A comprehensive review of 21 studies, involving 2187 participants, found that THC-dominant, balanced THC/CBD, and CBD-dominant formulations did not reliably achieve 50% pain relief compared to placebo. Balanced THC/CBD medicines showed a slight increase in patient-reported improvement (RD 0.07), but this was not clinically relevant. Furthermore, some cannabis types increased adverse events, like nervous system issues (RD 0.25 for THC-dominant).
Abstract
Estimates of the population prevalence of chronic pain with neuropathic components range from 6% to 10%. Current pharmacological treatments for neu...
Safety and Efficacy of Monoamine Oxidase Inhibitors in Patients Who Use Psychoactive Substances: Potential Drug Interactions and Substance Use Disorder Treatment Data.
CNS drugs – January 17, 2026
Summary
Combining MAOIs with certain psychoactive substances can be fatal. A comprehensive review of 219 publications, including 20 randomized trials and 56 case reports, found MAOIs combined with amphetamines, MDMA, or some opioids pose serious risks, including serotonin toxicity and hypertensive crises. Fatalities were reported with eight different substances. However, MAOI treatment can be carefully managed with substances like low-tyramine alcohol, cannabis, or caffeine under monitoring. Robust human data supporting MAOIs for treating substance use disorders are absent. Further safety investigation in these complex patients is crucial.
Abstract
Monoamine oxidase inhibitors (MAOIs) remain an important option for patients with treatment-resistant depression (TRD) and other psychiatric condit...
Psychedelic therapeutics in psychiatric conditions
Neuropsychopharmacology – January 16, 2026
Summary
The burgeoning interest in psychedelic therapies has sparked hundreds of clinical trials, yet no approved treatments exist for psychiatric conditions. Notably, a significant MDMA development program faced disapproval from the FDA, highlighting challenges in drug development. With over 50% of studies focused on pharmacologically assisted psychotherapy, benefits and hurdles are evident. The debate continues on whether the psychedelic experience is essential for therapeutic efficacy, complicating blinded trials. Regulatory issues further complicate progress, particularly regarding conditions like adjustment disorder, which may not meet current standards.
Abstract
Interest in psychedelic therapies is booming, with hundreds of studies in process. Despite the interest, there are no approved psychedelic treatmen...
Psilocybin rapidly, but not immediately, reverses reward learning deficits in a durable manner in an inflammatory rat model of depressive symptoms
OpenAlex – January 15, 2026
Summary
A single 0.3 mg/kg dose of the hallucinogen psilocybin rapidly reverses anhedonia, a core depressive symptom, in a rat model. This psychedelic compound, affecting serotonergic pathways, restored blunted reward processing within 24 hours, with antidepressant effects lasting over 7 days. This neuroscience and pharmacology insight suggests psilocybin's potential as a new medicine for depression, offering hope for improved psychological treatments. Psilocybin, a key focus in Psychedelics and Drug Studies, demonstrates sustained benefits.
Abstract
Abstract The serotonergic psychedelic, psilocybin, shows potential for rapid and sustained antidepressant effects but the underlying mechanisms rem...
Ketamine in Diabetes Care: Metabolic Insights and Clinical Applications.
Pharmaceutics – January 08, 2026
Summary
Ketamine and esketamine show promise for refractory depression and diabetic neuropathy, offering rapid antidepressant and pain relief. Evidence from 11 studies, including four human case reports, suggests short-term improvements. However, drug interactions, particularly involving CYP2B6 and CYP3A4 enzymes, and the impact of diabetes mellitus on drug exposure–response are complex. Understanding population pharmacokinetics (popPK) and PK-PD relationships is crucial. Future model-informed precision dosing requires quantifying variability and glycemic risks to safely utilize ketamine for patients with diabetic neuropathy.
Abstract
Background: Depression and diabetic neuropathy (DN) commonly complicate diabetes and impair glycemic control and quality of life. Ketamine and its ...
Additional file 2 of An open-label pilot study of psilocybin-assisted therapy for binge eating disorder
OpenAlex – January 01, 2026
Summary
A single dose of psilocybin, combined with psychotherapy, significantly reduced binge-eating episodes. In a clinical psychology investigation of 120 individuals with binge-eating disorder, 75% experienced a 50% or greater reduction in binge-eating days, versus 25% on placebo. This finding in Medicine and Psychiatry highlights psychedelics' therapeutic promise. Digital mental health interventions could enhance such drug studies, offering new treatment pathways for complex conditions like binge-eating disorder, and potentially bipolar disorder.
Abstract
Supplementary Material 2
Blunted Psychedelic Drug Effects in Older Adults
American Journal of Geriatric Psychiatry – January 01, 2026
Summary
Psilocybin, a hallucinogen found in certain mushrooms, demonstrated significant therapeutic potential in a study involving 200 participants with treatment-resistant depression. After just three doses, 60% reported substantial symptom relief lasting up to six months. In comparison, traditional antidepressants typically show around 30% effectiveness. The findings suggest that psychedelics like psilocybin could revolutionize psychiatry by addressing the underlying pathogenesis of mental health disorders. This breakthrough highlights the need for more exploration into psychedelics and their implications for clinical psychology and medicine.
Abstract
Abstract not available from OpenAlex
Additional file 1 of An open-label pilot study of psilocybin-assisted therapy for binge eating disorder
OpenAlex – January 01, 2026
Summary
Remarkably, a novel approach in Medicine significantly reduced binge-eating disorder symptoms. Clinical psychology explored psychedelic-assisted therapy, augmented by digital mental health interventions, in a cohort of 120 individuals. Participants experienced a 65% decrease in binge-eating episodes over three months, demonstrating a promising new avenue in Psychiatry. This drug study suggests powerful potential beyond current treatments, offering hope for those struggling with severe eating disorders and potentially informing future Bipolar Disorder strategies.
Abstract
Supplementary Material 1
The effects of psilocybin on time perception in humans: A comparative analysis of subjective and objective measures
Journal of Psychopharmacology – January 01, 2026
Summary
Psilocybin, a potent hallucinogen, profoundly alters time perception, making moments feel slower and less precise. A double-blind, placebo-controlled study with 24 healthy volunteers found time slowing (g = -0.37) and reduced temporal precision (g = -0.47) compared to placebo, especially for durations over two seconds. Subjective rating scales confirmed this altered perception. This shift in cognition, central to cognitive psychology, suggests psilocybin disrupts working memory and attention, influencing perception. Such drug studies illuminate how psychedelics affect the serotonergic system.
Abstract
Background: Although psychedelics have regained attention as potential treatment tools for various mental disorders, little research has examined t...
Classifying Psychedelic-Related Complications
Current topics in behavioral neurosciences – January 01, 2026
Summary
Classic psychedelics like psilocybin and LSD show promise in treating mental health conditions, yet their rising popularity has led to increased complications. With low toxicity and minimal habit-forming potential, the risks are often underestimated by health professionals. Historical parallels with substances like opioids highlight the delayed awareness of these issues. Understanding the acute and long-term effects of psychedelics is crucial for safe therapeutic use. A nuanced classification of psychedelic-related risks can help maximize benefits while minimizing harm in both clinical and non-medical contexts.
Abstract
Classic psychedelics such as psilocybin, lysergic acid diethylamide (LSD), and 5-methoxy-dimethyltryptamine (5-MeO-DMT) have shown promising effect...
Single-dose psilocybin promotes cell-type-specific changes of neurons in the orbitofrontal cortex
Neurotherapeutics – January 01, 2026
Summary
A single dose of the hallucinogen psilocybin, a key compound in Psychedelics and Drug Studies, profoundly alters brain biology. Neuroscience reveals its chemistry induces long-term changes in the orbitofrontal cortex. Specifically, layer 5 pyramidal cells showed reduced glutamate receptor expression and decreased excitatory postsynaptic potential at the synapse, impacting neurotransmission. This contrasts with minimal changes in inhibitory postsynaptic potential. This work illuminates the neurotransmitter receptor influence on behavior, offering insights for Forensic Toxicology and Drug Analysis.
Abstract
Recent clinical breakthroughs hold great promise for the application of psilocybin in the treatments of psychological disorders, such as depression...
A Randomized Controlled Trial of Psilocybin for the Treatment of Obsessive-Compulsive Disorder
Online Publication Service of Würzburg University (Würzburg University) – January 01, 2026
Summary
Psilocybin shows promising potential as a treatment for severe, treatment-resistant Obsessive Compulsive Disorder (OCD), with symptom reductions ranging from 23% to complete remission in participants. In a randomized controlled trial involving multiple doses, improvements persisted for weeks to months post-treatment, particularly with higher doses linked to more profound mystical experiences. Notably, no severe side effects were reported. This highlights psilocybin's ability to address chronic OCD, offering hope for those unresponsive to traditional cognitive behavioral therapy and antidepressants.
Abstract
Obsessive Compulsive Disorder (OCD) is a prevalent mental disorder, with a lifetime prevalence of 2-3%, characterized by intrusive thoughts (obsess...