1
|
Thomas K. Toxicology and Pharmacological Interactions of Classic Psychedelics. Curr Top Behav Neurosci 2024. [PMID: 39042251 DOI: 10.1007/7854_2024_508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
As psychedelics are being investigated for more medical indications, it has become important to characterize the adverse effects and pharmacological interactions with these medications. This chapter will summarize what is known about the toxicology and drug-drug interactions for classic psychedelics, such as LSD, psilocybin, DMT, 5-MeO-DMT, mescaline, 2C-B, Bromo-DragonFLY, and 25X-NBOMe.
Collapse
Affiliation(s)
- Kelan Thomas
- Clinical Sciences, Touro University California College of Pharmacy, Vallejo, CA, USA.
| |
Collapse
|
2
|
Recognition and Management of Serotonin Toxidrome in the Emergency Department-Case Based Review. J Pers Med 2022; 12:jpm12122069. [PMID: 36556289 PMCID: PMC9782506 DOI: 10.3390/jpm12122069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Serotonin syndrome (SS) is a clinical toxidrome with high variability in clinical practice. It develops due to increased serotonin levels in the central nervous system. With an underestimated frequency, SS can develop following an overdose, a therapeutic dose increase, or drug to drug interaction of at least one serotonergic agent. It can present with autonomic signs, neuromuscular changes and an altered mental status. However, history and clinical examination are key features to formulate the diagnosis. Treatment options consist of supportive measures, discontinuation of the offending agent and certain therapeutic agents previously reported to improve outcomes. Physicians have limited experience with SS, partially due to the lack of its identification in clinical practice. Therefore, we have integrated, in a narrative review, the case of a young male with SS following an atypical antipsychotic overdose superimposed on chronic treatment with agents previously known to produce SS.
Collapse
|
3
|
Hirschfeld T, Smit-Rigter L, van der Gouwe D, Reiche S, Stöver H, Majić T. Safer Tripping: Serotonergic Psychedelics and Drug Checking. Submission and Detection Rates, Potential Harms, and Challenges for Drug Analysis. CURRENT ADDICTION REPORTS 2021. [DOI: 10.1007/s40429-021-00385-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Abstract
Purpose of Review
With the continuous emergence of new psychoactive substances, drug checking (DC) services are challenged by an increasingly complex drug market. Considering the resumed scientific and public interest in serotonergic psychedelics (SPs) like LSD, psilocybin, and 2C-B, we present the results of a literature search investigating the presence and proportion of SPs in DC samples.
Recent Findings
In 15 identified reports, submission and detection rates of SPs were comparably low, but increasing. Samples contained considerable amounts of adulterations or analogues, mostly novel SPs with unknown toxicological profiles and in some cases potentially life-threatening effects. The detection of SPs, however, requires advanced analysis techniques currently not available to most DC services.
Summary
Given the substantial proportion of novel SPs in DC samples and the associated risks, DC can be a valuable harm reduction and monitoring tool for SPs if analysis techniques with high sensitivity are employed.
Collapse
|
4
|
Rudin D, Liechti ME, Luethi D. Molecular and clinical aspects of potential neurotoxicity induced by new psychoactive stimulants and psychedelics. Exp Neurol 2021; 343:113778. [PMID: 34090893 DOI: 10.1016/j.expneurol.2021.113778] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 05/25/2021] [Accepted: 05/29/2021] [Indexed: 12/20/2022]
Abstract
New psychoactive stimulants and psychedelics continue to play an important role on the illicit new psychoactive substance (NPS) market. Designer stimulants and psychedelics both affect monoaminergic systems, although by different mechanisms. Stimulant NPS primarily interact with monoamine transporters, either as inhibitors or as substrates. Psychedelic NPS most potently interact with serotonergic receptors and mediate their mind-altering effects mainly through agonism at serotonin 5-hydroxytryptamine-2A (5-HT2A) receptors. Rarely, designer stimulants and psychedelics are associated with potentially severe adverse effects. However, due to the high number of emerging NPS, it is not possible to investigate the toxicity of each individual substance in detail. The brain is an organ particularly sensitive to substance-induced toxicity due to its high metabolic activity. In fact, stimulant and psychedelic NPS have been linked to neurological and cognitive impairments. Furthermore, studies using in vitro cell models or rodents indicate a variety of mechanisms that could potentially lead to neurotoxic damage in NPS users. Cytotoxicity, mitochondrial dysfunction, and oxidative stress may potentially contribute to neurotoxicity of stimulant NPS in addition to altered neurochemistry. Serotonin 5-HT2A receptor-mediated toxicity, oxidative stress, and activation of mitochondrial apoptosis pathways could contribute to neurotoxicity of some psychedelic NPS. However, it remains unclear how well the current preclinical data of NPS-induced neurotoxicity translate to humans.
Collapse
Affiliation(s)
- Deborah Rudin
- Division of Clinical Pharmacology and Toxicology, University Hospital Basel and University of Basel, Basel, Switzerland; Institute of Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Matthias E Liechti
- Division of Clinical Pharmacology and Toxicology, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Dino Luethi
- Division of Clinical Pharmacology and Toxicology, University Hospital Basel and University of Basel, Basel, Switzerland; Institute of Pharmacology, Medical University of Vienna, Vienna, Austria; Institute of Applied Physics, TU Wien, Vienna, Austria.
| |
Collapse
|
5
|
Schifano F, Chiappini S, Miuli A, Corkery JM, Scherbaum N, Napoletano F, Arillotta D, Zangani C, Catalani V, Vento A, Pettorruso M, Martinotti G, Massimo DG, Guirguis A. New psychoactive substances (NPS) and serotonin syndrome onset: A systematic review. Exp Neurol 2021; 339:113638. [PMID: 33571533 DOI: 10.1016/j.expneurol.2021.113638] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 01/19/2021] [Accepted: 02/02/2021] [Indexed: 12/19/2022]
Abstract
The use of several new psychoactive substances (NPS) has become very popular and is posing global health risks. Chemically and pharmacologically diverse molecules are constantly emerging and are presenting with a wide range of clinical implications. Serotonin toxicity, and specifically Serotonin Syndrome (SS), might develop as a result of an over-activation of the serotoninergic system caused by several mechanisms resulting in a classic triad of altered mental status, neuromuscular effects, and autonomic hyperactivity. In the present systematic review, we have investigated and summarized the available evidence related to the association between SS and NPS intake. Three retrospective studies, two case series and five case reports were included in this systematic review; several NPS were found to be implicated in SS occurrence These include psychedelic phenethylamines, e.g. 2, 5-dimethoxy-4-iodophenethylamine (2C-I); 2-(4-Iodo-2,5-dimethoxyphenyl)- N-I[(2-methyoxyphenyl)methyl]ethanamine (25I-NBOMe); and 5-(2-aminopropyl)indole (5-IT); and synthetic cathinones, e.g. mephedrone; 3,4-methylenedioxypyrovalerone (MDPV); methylone; butylone; NRG3; alpha-methyltryptamine (AMT); methoxphenidine (MXP); and the antidepressant bupropion. Bupropion was here misused at high dosages and/or in combination with other licit/illicit serotonergic drugs. Whilst most substances were ingested orally, nasal insufflation (with both 5-IT and 2C-I) and sublingual administration of blotter paper (with 25I-NBOMe) were reported as well. Interestingly, the psychiatric history was negative for most subjects, apart from two cases. Clinicians should be aware of NPS potential risks and the severe consequences of their recreational use, including SS. Also, due to their undetectability in routine and common drug screenings, the diagnostic challenges posed by NPS should not be underestimated during the treatment of such patients.
Collapse
Affiliation(s)
- Fabrizio Schifano
- Psychopharmacology, Drug Misuse & Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom
| | - Stefania Chiappini
- Psychopharmacology, Drug Misuse & Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom; Department of Neuroscience, Imaging and Clinical Sciences, "G. D'Annunzio" University, Chieti, Italy.
| | - Andrea Miuli
- Department of Neuroscience, Imaging and Clinical Sciences, "G. D'Annunzio" University, Chieti, Italy
| | - John Martin Corkery
- Psychopharmacology, Drug Misuse & Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom
| | - Norbert Scherbaum
- LVR-Hospital Essen, Department of Addictive Behaviour and Addiction Medicine, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Flavia Napoletano
- Psychopharmacology, Drug Misuse & Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom
| | - Davide Arillotta
- Psychopharmacology, Drug Misuse & Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom
| | - Caroline Zangani
- Psychopharmacology, Drug Misuse & Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom
| | - Valeria Catalani
- Psychopharmacology, Drug Misuse & Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom
| | - Alessandro Vento
- Addictions' Observatory, Rome, Italy; 'Guglielmo Marconi' University, Rome, Italy; Department of Mental Health, ASL Roma 2, Rome, Italy
| | - Mauro Pettorruso
- Department of Neuroscience, Imaging and Clinical Sciences, "G. D'Annunzio" University, Chieti, Italy
| | - Giovanni Martinotti
- Department of Neuroscience, Imaging and Clinical Sciences, "G. D'Annunzio" University, Chieti, Italy
| | - Di Giannantonio Massimo
- Department of Neuroscience, Imaging and Clinical Sciences, "G. D'Annunzio" University, Chieti, Italy
| | - Amira Guirguis
- Psychopharmacology, Drug Misuse & Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom; Swansea University Medical School, Institute of Life Sciences 2, Swansea University, Swansea, United Kingdom
| |
Collapse
|
6
|
Barnett BS, Greer GR. Psychedelic Psychiatry and the Consult-Liaison Psychiatrist: A Primer. J Acad Consult Liaison Psychiatry 2021; 62:460-471. [PMID: 34210406 DOI: 10.1016/j.jaclp.2020.12.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 12/26/2020] [Accepted: 12/27/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Psychedelic compounds such as lysergic acid diethylamide (LSD), psilocybin, and 3,4-Methylenedioxymethamphetamine (MDMA) share a long and complex history with psychiatry. A half century ago, psychedelics were widely employed by psychiatrists in investigational and clinical settings, with studies demonstrating promising findings for their use in the treatment of mental illness and substance use disorders. However, concerns were also raised about their abuse potential and other adverse effects. Owing to these worries and psychedelics' association with the counterculture movement, psychedelics were largely outlawed in the United States in 1970, bringing research on their therapeutic potential to a halt. However, in recent years, a resurgence of psychedelic research has revealed compelling, though early, evidence for the use of psychedelic-assisted therapy in treating alcohol use disorder, nicotine use disorder, posttraumatic stress disorder, and depression. OBJECTIVE Here we provide an overview of psychiatry's complicated relationship with psychedelics, while reviewing contemporary findings on psychedelic-assisted therapy, safety of psychedelic-assisted therapy, and risks of nonmedical use. We also make the case that psychiatry should consider preparing now for the possibility of Food and Drug Administration approval of psychedelic-assisted therapies in the near future. We conclude by discussing how growing societal interest in psychedelics could impact the work of consult-liaison psychiatrists, while also exploring how consult-liaison psychiatrists might contribute to future delivery of psychedelic treatments. METHODS We reviewed literature on psychedelic-assisted therapies and adverse events resulting from nonmedical psychedelic use. RESULTS We found a small, but rapidly growing literature indicating that psychedelic-assisted therapies may have treatment potential for mental illness and addiction. Our search also revealed a variety of rare adverse events stemming from nonmedical psychedelic use. CONCLUSIONS Despite past concerns about psychedelics, current data indicate psychedelic-assisted therapy may potentially reduce suffering owing to mental illness and addiction if administered thoughtfully and cautiously by trained professionals in medical settings.
Collapse
Affiliation(s)
- Brian S Barnett
- Department of Psychiatry and Psychology, Center for Behavioral Health, Neurological Institute, Cleveland Clinic, Cleveland, OH.
| | | |
Collapse
|
7
|
The Clinical Toxicology of 4-Bromo-2,5-dimethoxyphenethylamine (2C-B): The Severity of Poisoning After Exposure to Low to Moderate and High Doses. Ann Emerg Med 2020; 76:303-317. [PMID: 32507489 DOI: 10.1016/j.annemergmed.2020.04.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 03/30/2020] [Accepted: 04/08/2020] [Indexed: 12/13/2022]
Abstract
STUDY OBJECTIVE We studied the severity of poisoning after exposure to low to moderate and high doses of 4-bromo-2,5-dimethoxyphenethylamine (2C-B). METHODS Patients for whom the Dutch Poisons Information Centre was consulted for 2C-B exposure from 2016 to 2018 were included in a prospective cohort study. Data were collected through telephone interviews with the physician or patient. Patients were categorized according to the reported 2C-B dose: low to moderate (up to 20 mg), high (greater than 20 mg), or unknown. Presence of 2C-B was analyzed in leftover drug and biological samples with liquid/gas chromatography-mass spectrometry. The severity of poisoning was graded with the Poisoning Severity Score. RESULTS We included 59 patients, of whom 32 could be followed up. Low to moderate 2C-B doses were reported by 9 patients (28%), high doses by 17 (53%), and unknown doses by 6 (19%). Poisoning was moderate in the majority of patients in both the low- to moderate-dose and high-dose groups. Frequently reported symptoms included mydriasis, agitation or aggression, hallucinations, confusion, anxiety, hypertension, and tachycardia. The presence of 2C-B was confirmed in 5 patients in urine (n=3) or drug samples (n=4). CONCLUSION In this study, most 2C-B poisonings resulted in moderate toxicity even at high reported doses up to 192 mg. No severe cases were observed. The clinical course was usually short-lived (up to 24 hours) and typically involved hallucinations in addition to mild somatic effects.
Collapse
|