Psilocybin – Summary of knowledge and new perspectives
Abstract
Psilocybin, a psychoactive alkaloid contained in hallucinogenic mushrooms, is nowadays given a lot of attention in the scientific community as a research tool for modeling psychosis as well as due to its potential therapeutic effects. However, it is also a very popular and frequently abused natural hallucinogen. This review summarizes all the past and recent knowledge on psilocybin. It briefly deals with its history, discusses the pharmacokinetics and pharmacodynamics, and compares its action in humans and animals. It attempts to describe the mechanism of psychedelic effects and objectify its action using modern imaging and psychometric methods. Finally, it describes its therapeutic and abuse potential.
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Serotonergic psychedelics present very low long-term toxicity.
“These compounds present very low long-term toxicity [9, 10]”
Psilocybin is a serotonergic classic psychedelic that has been examined in combination with psychological support as a promising treatment option in clinical trials for various disorders.
“Psilocybin (4-phosphryloxy-N,N-dimethyltryptamine) is a serotonergic classic psychedelic (19–25) that has been examined in combination with psychological support as a promising treatment option in clinical trials for various disorders (26–28).”
Cites
Griffiths, R. R., Richards, W. A., McCann, U., & Jesse, R. (2006) · Psychopharmacology · doi:10.1007/s00213-006-0457-5 · Cited by 1,684 · cited 4× · see citing works
“429 mg/kg in clinical trials (Griffiths et al., 2006), which is approximately 30" less than the LD50 for rabbits.”
BackgroundInfluentialLifetime Prevalence of Psychotic and Bipolar I Disorders in a General Population
Perälä, J., Suvisaari, J., Saarni, S. I., Kuoppasalmi, K. I., Isometsä, E. T., Pirkola, S. P., Partonen, T., Tuulio‐Henriksson, A., Hintikka, J., Kieseppä, T., et al. (2007) · Archives of General Psychiatry · doi:10.1001/archpsyc.64.1.19 · Cited by 1,523 · see citing works
(1995) · PubMed · Cited by 1,320 · see citing works
Nichols, D. E. (2004) · Pharmacology & Therapeutics · doi:10.1016/j.pharmthera.2003.11.002 · Cited by 1,211 · see citing works
Pilot Study of Psilocybin Treatment for Anxiety in Patients With Advanced-Stage Cancer
Grob, C. S., Danforth, A. L., Chopra, G. S., Hagerty, M., McKay, C. R., Halberstadt, A. L., & Greer, G. R. (2011) · Archives of General Psychiatry · doi:10.1001/archgenpsychiatry.2010.116 · Cited by 1,206 · see citing works
Human hallucinogen research: guidelines for safety
Johnson, M., Richards, W., & Griffiths, R. (2008) · Journal of Psychopharmacology · doi:10.1177/0269881108093587 · Cited by 1,203 · see citing works
Neural correlates of the psychedelic state as determined by fMRI studies with psilocybin
Carhart-Harris, R. L., Erritzoe, D., Williams, T., Stone, J. M., Reed, L. J., Colasanti, A., Tyacke, R. J., Leech, R., Malizia, A. L., Murphy, K., et al. (2012) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1119598109 · Cited by 1,172 · see citing works
Psilocybin induces schizophrenia-like psychosis in humans via a serotonin-2 agonist action
Vollenweider, F. X., Vollenweider-Scherpenhuyzen, M. F. I., Bäbler, A., Vogel, H., & Hell, D. (1998) · NeuroReport · doi:10.1097/00001756-199812010-00024 · Cited by 1,018 · see citing works
Psilocybin occasioned mystical-type experiences: immediate and persisting dose-related effects
Griffiths, R. R., Johnson, M. W., Richards, W. A., Richards, B. D., McCann, U., & Jesse, R. (2011) · Psychopharmacology · doi:10.1007/s00213-011-2358-5 · Cited by 932 · see citing works
González-Maeso, J., Weisstaub, N. V., Zhou, M., Chan, P., Ivic, L., Ang, R., Lira, A., Bradley-Moore, M., Ge, Y., Zhou, Q., et al. (2007) · Neuron · doi:10.1016/j.neuron.2007.01.008 · Cited by 925 · see citing works
Griffiths, R., Richards, W., Johnson, M., McCann, U., & Jesse, R. (2008) · Journal of Psychopharmacology · doi:10.1177/0269881108094300 · Cited by 905 · see citing works
MacLean, K. A., Johnson, M. W., & Griffiths, R. R. (2011) · Journal of Psychopharmacology · doi:10.1177/0269881111420188 · Cited by 895 · see citing works
Identification of a serotonin/glutamate receptor complex implicated in psychosis
González-Maeso, J., Ang, R. L., Yuen, T., Chan, P., Weisstaub, N. V., López-Giménez, J. F., Zhou, M., Okawa, Y., Callado, L. F., Milligan, G., et al. (2008) · Nature · doi:10.1038/nature06612 · Cited by 803 · see citing works
Safety, tolerability, and efficacy of psilocybin in 9 patients with obsessive-compulsive disorder
Moreno, F. A., Wiegand, C. B., Taitano, E. K., & Delgado, P. L. (2006) · The Journal of Clinical Psychiatry · doi:10.4088/jcp.v67n1110 · Cited by 789 · see citing works
The neurobiology of psychedelic drugs: implications for the treatment of mood disorders
Vollenweider, F. X., & Kometer, M. (2010) · Nature Reviews Neuroscience · doi:10.1038/nrn2884 · Cited by 723 · see citing works
The Standardized Psychometric Assessment of Altered States of Consciousness (ASCs) in Humans
Dittrich, A. (1998) · Pharmacopsychiatry · doi:10.1055/s-2007-979351 · Cited by 577 · see citing works
Studerus, E., Kometer, M., Hasler, F., & Vollenweider, F. X. (2011) · Journal of Psychopharmacology · doi:10.1177/0269881110382466 · Cited by 532 · cited 2× · see citing works
“In another follow-up survey with subjects from studies carried out in Switzerland between 1999 and 2008, most described the experience as pleasurable, enriching and non-threatening (Studerus et al., 2011).”
BackgroundMethodTuda, M., & Morimoto, K. (2004) · ZOOLOGICAL SCIENCE · doi:10.2108/0289-0003(2004)21[105:ansmsc]2.0.co;2 · Cited by 485 · see citing works
Broadband Cortical Desynchronization Underlies the Human Psychedelic State
Muthukumaraswamy, S. D., Carhart-Harris, R. L., Moran, R., Brookes, M. J., Williams, T. M., Errtizoe, D., Sessa, B., Papadopoulos, A., Bolstridge, M., Singh, K. D., et al. (2013) · Journal of Neuroscience · doi:10.1523/jneurosci.2063-13.2013 · Cited by 465 · see citing works
The pharmacology of psilocybin
Passie, T., Seifert, J., Schneider, U., & Emrich, H. M. (2002) · Addiction Biology · doi:10.1080/1355621021000005937 · Cited by 465 · cited 7× · see citing works
“According to a number of toxicological and clinical studies psilocybin has a very low toxicity (Nichols, 2004; Passie et al., 2002).”
BackgroundInfluentialMechanism of Action of Atypical Antipsychotic Drugs and the Neurobiology of Schizophrenia
Horáček, J., Bubeníková‐Valešová, V., Kopeček, M., Páleníček, T., Dockery, C. A., Mohr, P., & Höschl, C. (2006) · CNS Drugs · doi:10.2165/00023210-200620050-00004 · Cited by 462 · see citing works
Self-citationStrassman, R. J. (1994) · Archives of General Psychiatry · doi:10.1001/archpsyc.1994.03950020022002 · Cited by 453 · see citing works
Hasler, F., Grimberg, U., Benz, M. A., Huber, T., & Vollenweider, F. X. (2004) · Psychopharmacology · doi:10.1007/s00213-003-1640-6 · Cited by 451 · see citing works
Vollenweider, F. (1997) · Neuropsychopharmacology · doi:10.1016/s0893-133x(96)00246-1 · Cited by 444 · see citing works
Serotonin research: contributions to understanding psychoses
GEYER, M., & VOLLENWEIDER, F. (2008) · Trends in Pharmacological Sciences · doi:10.1016/j.tips.2008.06.006 · Cited by 427 · see citing works
Multiple receptors contribute to the behavioral effects of indoleamine hallucinogens
Halberstadt, A. L., & Geyer, M. A. (2011) · Neuropharmacology · doi:10.1016/j.neuropharm.2011.01.017 · Cited by 416 · see citing works
PHARMACEUTICAL SOCIETY OF GREAT BRITAIN.
Hill, A. (1930) · The Lancet · doi:10.1016/s0140-6736(00)86391-6 · Cited by 376 · see citing works
Prediction of Psilocybin Response in Healthy Volunteers
Studerus, E., Gamma, A., Kometer, M., & Vollenweider, F. X. (2012) · PLoS ONE · doi:10.1371/journal.pone.0030800 · Cited by 369 · see citing works
Kometer, M., Schmidt, A., Jancke, L., & Vollenweider, F. X. (2013) · Journal of Neuroscience · doi:10.1523/jneurosci.3007-12.2013 · Cited by 355 · see citing works
A systems model of altered consciousness: integrating natural and drug-induced psychoses
Vollenweider, F. X., & Geyer, M. A. (2001) · Brain Research Bulletin · doi:10.1016/s0361-9230(01)00646-3 · Cited by 339 · see citing works
Vollenweider, F. (1999) · Neuropsychopharmacology · doi:10.1016/s0893-133x(98)00108-0 · Cited by 305 · cited 1× · see citing works
“Psilocybin also indirectly increased (via 5HT receptors) the release of dopamine in the ventral striatum in humans, an effect that correlated with symptoms of depersonalization and euphoria (Vollenweider et al., 1999).”
BackgroundPsychedelics and the Human Receptorome
Ray, T. S. (2010) · PLoS ONE · doi:10.1371/journal.pone.0009019 · Cited by 300 · see citing works
González-Maeso, J., Yuen, T., Ebersole, B. J., Wurmbach, E., Lira, A., Zhou, M., Weisstaub, N., Hen, R., Gingrich, J. A., & Sealfon, S. C. (2003) · The Journal of Neuroscience · doi:10.1523/jneurosci.23-26-08836.2003 · Cited by 297 · see citing works
LYSERGIC ACID DIETHYLAMIDE: SIDE EFFECTS AND COMPLICATIONS
COHEN, S. (1960) · The Journal of Nervous and Mental Disease · doi:10.1097/00005053-196001000-00005 · Cited by 287 · see citing works
ADVERSE REACTIONS TO PSYCHEDELIC DRUGS. A REVIEW OF THE LITERATURE
Strassman, R. (1984) · Journal of Nervous and Mental Disease · doi:10.1097/00005053-198410000-00001 · Cited by 280 · see citing works
Psychotropic Drugs and Related Compounds.
Burger, A. (1967) · Journal of Medicinal Chemistry · doi:10.1021/jm00318a063 · Cited by 279 · see citing works
Human psychopharmacology of N,N-dimethyltryptamine
Strassman, R. J. (1995) · Behavioural Brain Research · doi:10.1016/0166-4328(96)00081-2 · Cited by 261 · see citing works
Response of cluster headache to psilocybin and LSD
Sewell, R. A., Halpern, J. H., & Pope, H. G. (2006) · Neurology · doi:10.1212/01.wnl.0000219761.05466.43 · Cited by 260 · see citing works
Neve, K. A., & Neve, R. L. (1997) · Humana Press eBooks · doi:10.1007/978-1-4757-2635-0 · Cited by 259 · see citing works
REACTIONS TO PSILOCYBJN ADMINISTERED IN A SUPPORTIVE ENVIRONMENT
Leary, T., Litwin, G. H., & Metzner, R. (1963) · The Journal of Nervous and Mental Disease · doi:10.1097/00005053-196312000-00007 · Cited by 245 · see citing works
Effects of psilocybin on time perception and temporal control of behaviour in humans
Wittmann, M., Carter, O. L., Hasler, F., Cahn, B. R., Grimberg, U., Spring, P., Hell, D., Flohr, H., & Vollenweider, F. X. (2006) · Journal of Psychopharmacology · doi:10.1177/0269881106065859 · Cited by 240 · see citing works
Carhart-Harris, R. L., Leech, R., Williams, T. M., Erritzoe, D., Abbasi, N., Bargiotas, T., Hobden, P., Sharp, D. J., Evans, J., Feilding, A., et al. (2012) · British Journal of Psychiatry · doi:10.1192/bjp.bp.111.103309 · Cited by 237 · see citing works
Moreno, J. L., Holloway, T. D., Albizu, L., Sealfon, S. C., & González‐Maeso, J. (2011) · Neuroscience Letters · doi:10.1016/j.neulet.2011.01.046 · Cited by 235 · see citing works
Hasler, F., Bourquin, D., Brenneisen, R., Bär, T., & Vollenweider, F. X. (1997) · Pharmaceutica Acta Helvetiae · doi:10.1016/s0031-6865(97)00014-9 · Cited by 234 · see citing works
The behavioral pharmacology of hallucinogens
Fantegrossi, W. E., Murnane, K. S., & Reissig, C. J. (2007) · Biochemical Pharmacology · doi:10.1016/j.bcp.2007.07.018 · Cited by 226 · see citing works
Psilocybin und Psilocin, zwei psychotrope Wirkstoffe aus mexikanischen Rauschpilzen
Hofmann, A. A., Heim, R., Brack, A., Kobel, H., Frey, A., Ott, H., Petrzilka, T., & Troxler, F. (1959) · Helvetica Chimica Acta · doi:10.1002/hlca.19590420518 · Cited by 225 · see citing works
Gouzoulis-Mayfrank, E. (1999) · Neuropsychopharmacology · doi:10.1016/s0893-133x(98)00089-x · Cited by 219 · see citing works
Hallucinogen persisting perception disorder: what do we know after 50 years?
Halpern, J. H. (2003) · Drug and Alcohol Dependence · doi:10.1016/s0376-8716(02)00306-x · Cited by 219 · see citing works
Halberstadt, A. L., Koedood, L., Powell, S. B., & Geyer, M. A. (2011) · Journal of Psychopharmacology · doi:10.1177/0269881110388326 · Cited by 213 · see citing works
Harm potential of magic mushroom use: A review
van Amsterdam, J., Opperhuizen, A., & van den Brink, W. (2011) · Regulatory Toxicology and Pharmacology · doi:10.1016/j.yrtph.2011.01.006 · Cited by 209 · see citing works
Differential interactions of indolealkylamines with 5-hydroxytryptamine receptor subtypes
McKenna, D. J., Repke, D. B., Lo, L., & Peroutka, S. J. (1990) · Neuropharmacology · doi:10.1016/0028-3908(90)90001-8 · Cited by 195 · see citing works
Umbricht, D., Vollenweider, F. X., Schmid, L., Grübel, C., Skrabo, A., Huber, T., & Koller, R. (2003) · Neuropsychopharmacology · doi:10.1038/sj.npp.1300005 · Cited by 187 · see citing works
EEG and Human Psychopharmacology
Fink, M. R. (1969) · Annual Review of Pharmacology · doi:10.1146/annurev.pa.09.040169.001325 · Cited by 177 · see citing works
(1987) · Comparative Biochemistry and Physiology Part A Physiology · doi:10.1016/0300-9629(87)90658-x · Cited by 170 · see citing works
Creese, I., Burt, D. R., & Snyder, S. H. (1975) · Life Sciences · doi:10.1016/0024-3205(75)90118-6 · Cited by 169 · see citing works
Psychedelics and schizophrenia
González‐Maeso, J., & Sealfon, S. C. (2009) · Trends in Neurosciences · doi:10.1016/j.tins.2008.12.005 · Cited by 168 · see citing works
Shared care: a review of the literature
Hampson, J. P., Roberts, R., & Morgan, D. A. (1996) · Family Practice · doi:10.1093/fampra/13.3.264 · Cited by 166 · see citing works
PAHNKE'S "GOOD FRIDAY EXPERIMENT' A LONG-TERM FOLLOW-UP AND METHODOLOGICAL CRITIQUE
Doblin, R. (1991) · Cited by 163 · see citing works
Vollenweider, F., Csomor, P., Knappe, B., Geyer, M., & Quednow, B. (2007) · Neuropsychopharmacology · doi:10.1038/sj.npp.1301324 · Cited by 159 · see citing works
Animal Models of Serotonergic Psychedelics
Hanks, J. B., & González-Maeso, J. (2013) · ACS Chemical Neuroscience · doi:10.1021/cn300138m · Cited by 156 · see citing works
Kohn, B., & Hofmann, A. (1981) · The Antioch Review · doi:10.2307/4638477 · Cited by 146 · see citing works
Gouzoulis‐Mayfrank, E., Thelen, B., Habermeyer, E., Kunert, H. J., Kovar, K. ‐., Lindenblatt, H., Hermle, L., Spitzer, M., & Sass, H. (1999) · Psychopharmacology · doi:10.1007/s002130050860 · Cited by 145 · see citing works
Konstitutionsaufklärung und Synthese von Psilocybin
Hofmann, A. A., Frey, A., Ott, H., Petrzilka, T., & Troxler, F. (1958) · Cellular and Molecular Life Sciences · doi:10.1007/bf02160424 · Cited by 140 · see citing works
Comparison of the reactions induced by psilocybin and LSD-25 in man
Isbell, H. (1959) · Psychopharmacology · doi:10.1007/bf00408109 · Cited by 140 · see citing works
Hallucinogenic drugs in pre-Columbian Mesoamerican cultures
Carod-Artal, F. J. (2014) · Neurología (English Edition) · doi:10.1016/j.nrleng.2011.07.010 · Cited by 136 · see citing works
Effect of ring fluorination on the pharmacology of hallucinogenic tryptamines
Blair, J. B., Kurrasch-Orbaugh, D., Marona-Lewicka, D., Cumbay, M. G., Watts, V. J., Barker, E. L., & Nichols, D. E. (2000) · Journal of Medicinal Chemistry · doi:10.1021/jm000339w · Cited by 131 · see citing works
Riba, J., Anderer, P., Jané, F., Saletu, B., & Barbanoj, M. J. (2004) · Neuropsychobiology · doi:10.1159/000077946 · Cited by 130 · see citing works
Brain mechanisms of hallucinogens and entactogens
Vollenweider, F. X. (2001) · Dialogues in Clinical Neuroscience · doi:10.31887/dcns.2001.3.4/fxvollenweider · Cited by 129 · see citing works
Comparison of psilocin with psilocybin, mescaline and LSD-25
Wolbach, A. B., Miner, E. J., & Isbell, H. (1962) · Psychopharmacology · doi:10.1007/bf00412109 · Cited by 123 · see citing works
Serotonin 5-HT2A Receptors: Molecular Biology and Mechanisms of Regulation
Roth, B. L., Berry, S. A., Kroeze, W. K., Willins, D. L., & Kristiansen, K. (1998) · Critical Reviews in Neurobiology · doi:10.1615/critrevneurobiol.v12.i4.30 · Cited by 114 · see citing works
Acute Adverse Reactions to Lsd in Clinical and Experimental use in the United Kingdom
Malleson, N. (1971) · British Journal of Psychiatry · doi:10.1192/bjp.118.543.229 · Cited by 111 · see citing works
(1975) · PubMed · Cited by 101 · see citing works
Fantegrossi, W. E., Woods, J. H., & Winger, G. (2004) · Behavioural Pharmacology · doi:10.1097/00008877-200403000-00007 · Cited by 101 · see citing works
Hasler, F., Bourquin, D., Brenneisen, R., & Vollenweider, F. X. (2002) · Journal of Pharmaceutical and Biomedical Analysis · doi:10.1016/s0731-7085(02)00278-9 · Cited by 100 · see citing works
Horita, A., & Weber, L. J. (1961) · Biochemical Pharmacology · doi:10.1016/0006-2952(61)90124-1 · Cited by 99 · see citing works
Can psychedelics have a role in psychiatry once again?
Sessa, B. (2005) · The British Journal of Psychiatry · doi:10.1192/bjp.186.6.457 · Cited by 98 · see citing works
Lindenblatt, H., Krämer, E., Holzmann-Erens, P., Gouzoulis‐Mayfrank, E., & Kovar, K. (1998) · Journal of Chromatography B Biomedical Sciences and Applications · doi:10.1016/s0378-4347(98)00067-x · Cited by 90 · see citing works
Schmidt, A., Kometer, M., Bachmann, R. F., Seifritz, E., & Vollenweider, F. X. (2012) · Psychopharmacology · doi:10.1007/s00213-012-2811-0 · Cited by 90 · see citing works
Detection of psilocin in body fluids
Sticht, G., & Käferstein, H. (2000) · Forensic Science International · doi:10.1016/s0379-0738(00)00213-9 · Cited by 86 · see citing works
Dysregulated 5-HT2A receptor binding in postmortem frontal cortex of schizophrenic subjects
Muguruza, C., Moreno, J. L., Umali, A., Callado, L. F., Meana, J. J., & González‐Maeso, J. (2012) · European Neuropsychopharmacology · doi:10.1016/j.euroneuro.2012.10.006 · Cited by 86 · see citing works
Pfund, Z., Chugani, D. C., Juhász, C., Muzik, O., Chugani, H. T., Wilds, I. B., Seraji‐Bozorgzad, N., & Moore, G. J. (2000) · Journal of Cerebral Blood Flow & Metabolism · doi:10.1097/00004647-200005000-00014 · Cited by 84 · see citing works
Psilocybin impairs high-level but not low-level motion perception
Carter, O. L., Pettigrew, J. D., Burr, D. C., Alais, D., Hasler, F., & Vollenweider, F. X. (2004) · Neuroreport · doi:10.1097/00001756-200408260-00023 · Cited by 84 · see citing works
Relief of obsessive-compulsive symptoms by LSD and psilocin
Leonard, H. L., & RAPOPORT, J. L. (1987) · American Journal of Psychiatry · doi:10.1176/ajp.144.9.1239b · Cited by 81 · see citing works
A worldwide geographical distribution of the neurotropic fungi, an analysis and discussion.
Guzmán, G., Allen, J., & Gartz, J. (2000) · Cited by 81 · see citing works
Gouzoulis‐Mayfrank, E., Heekeren, K., Thelen, B., Lindenblatt, H., Kovar, K. ‐., Sass, H., & Geyer, M. A. (1998) · Behavioural Pharmacology · doi:10.1097/00008877-199811000-00011 · Cited by 80 · see citing works
Coma, Hyperthermia, and Bleeding Associated with Massive LSD Overdose a Report of Eight Cases
Klock, J., Boerner, U., & Becker, C. E. (1975) · Clinical Toxicology · doi:10.3109/15563657508988063 · Cited by 78 · see citing works
The Detection of Psilocin in Human Urine
Grieshaber, A., Moore, K., & LEVINE, B. S. (2001) · Journal of Forensic Sciences · doi:10.1520/jfs15014j · Cited by 76 · see citing works
Psilocybin-induced stimulus control in the rat
Winter, J. C., Rice, K. C., Amorosi, D. J., & Rabin, R. A. (2007) · Pharmacology Biochemistry and Behavior · doi:10.1016/j.pbb.2007.06.003 · Cited by 75 · see citing works
The fate of psilocin in the rat
Kalberer, F., Kreis, W., & Rutschmann, J. (1962) · Biochemical Pharmacology · doi:10.1016/0006-2952(62)90050-3 · Cited by 73 · see citing works
Abwandlungsprodukte von Psilocybin und Psilocin. 2. Mitteilung über synthetische Indolverbindungen
Troxler, F., Seemann, F., & Hofmann, A. A. (1959) · Helvetica Chimica Acta · doi:10.1002/hlca.19590420638 · Cited by 71 · see citing works
Glucuronidation of Psilocin and 4-Hydroxyindole by the Human UDP-Glucuronosyltransferases
Manevski, N., Kurkela, M. J., Höglund, C., Mauriala, T., Court, M. H., Yli‐Kauhaluoma, J. T., & Finel, M. (2009) · Drug Metabolism and Disposition · doi:10.1124/dmd.109.031138 · Cited by 70 · see citing works
Effects of the Hallucinogen Psilocybin on Covert Orienting of Visual Attention in Humans
Gouzoulis‐Mayfrank, E., Thelen, B., Maier, S., Heekeren, K., Kovar, K. ‐., Sass, H., & Spitzer, M. (2002) · Neuropsychobiology · doi:10.1159/000063672 · Cited by 69 · see citing works
Beug, M. W., & Bigwood, J. (1982) · Journal of Ethnopharmacology · doi:10.1016/0378-8741(82)90013-7 · Cited by 65 · see citing works
An animal model of schizophrenia based on chronic LSD administration: Old idea, new results
Marona‐Lewicka, D., Nichols, C. D., & Nichols, D. E. (2011) · Neuropharmacology · doi:10.1016/j.neuropharm.2011.02.006 · Cited by 65 · see citing works
Histocompatibility antigen gene theory of inherited autoimmune disease.
Dd, A., & Knight, J. G. (1980) · The Lancet · Cited by 62 · see citing works
Extraction and analysis of indole derivatives from fungal biomass
Gartz, J. (1994) · Journal of Basic Microbiology · doi:10.1002/jobm.3620340104 · Cited by 58 · see citing works
A characteristic effect of hallucinogens on investigatory responding in rats
Geyer, M. A., Light, R. K., Rose, G. J., Petersen, L. R., Horwitt, D. D., Adams, L. M., & Hawkins, R. L. (1979) · Psychopharmacology · doi:10.1007/bf00491975 · Cited by 57 · see citing works
Dephosphorylation of psilocybin in the intact mouse
Horita, A., & Weber, L. J. (1962) · Toxicology and Applied Pharmacology · doi:10.1016/0041-008x(62)90102-3 · Cited by 56 · see citing works
Laussmann, T., & Meier-Giebing, S. (2010) · Forensic Science International · doi:10.1016/j.forsciint.2009.12.013 · Cited by 56 · see citing works
Negative reinforcing properties of some psychotropic drugs in drug-naive rhesus monkeys.
Hoffmeister, F. (1975) · Journal of Pharmacology and Experimental Therapeutics · doi:10.1016/s0022-3565(25)30082-0 · Cited by 53 · see citing works
Carhart-Harris, R. L., Williams, T. A., Sessa, B., Tyacke, R. J., Rich, A. S., Feilding, A., & Nutt, D. (2010) · Journal of Psychopharmacology · doi:10.1177/0269881110367445 · Cited by 52 · see citing works
Páleníček, T., Fujáková, M., Brunovský, M., Horáček, J., Gorman, I., Balı́ková, M., Rambousek, L., Syslová, K., Kačer, P., Zach, P., et al. (2012) · Psychopharmacology · doi:10.1007/s00213-012-2797-7 · Cited by 52 · see citing works
Self-citationSOME BIOCHEMICAL STUDIES ON PSILOCYBIN AND PSILOCIN
Horita, A. (1962) · doi:10.21236/ad0291057 · Cited by 47 · see citing works
Dephosphorylation of Psilocybin to Psilocin by Alkaline Phosphatase
Horita, A., & Weber, L. J. (1961) · Experimental Biology and Medicine · doi:10.3181/00379727-106-26228 · Cited by 46 · see citing works
Occurrence of Psilocybin in Various Higher Fungi from Several European Countries
Stijve, T., & Kuyper, T. W. (1985) · Planta Medica · doi:10.1055/s-2007-969526 · Cited by 43 · see citing works
Mutagenicity testing of 3 hallucinogens: LSD, psilocybin and‡ 9-THC using the micronucleus test
Went, G. (1978) · Cellular and Molecular Life Sciences · doi:10.1007/bf01923013 · Cited by 43 · see citing works
Medical Toxicology of Drug Abuse: Synthesized Chemicals and Psychoactive Plants
Barceloux, D. G. (2012) · Cited by 42 · see citing works
Conditioned fear inhibits c-fos mRNA expression in the central extended amygdala
Day, H. E. W., Kryskow, E. M., Nyhuis, T. J., Herlihy, L. E., & Campeau, S. (2008) · Brain Research · doi:10.1016/j.brainres.2008.06.085 · Cited by 42 · see citing works
Sugrue, M. F. (1969) · British Journal of Pharmacology · doi:10.1111/j.1476-5381.1969.tb07983.x · Cited by 40 · see citing works
Magic mushrooms: hope for a 'cheap high' resulting in end-stage renal failure
Franz, M., Regele, H. M., Kirchmair, M., Kletzmayr, J., Sunder–Plassmann, G., Hörl, W., & Pohanka, E. (1996) · Nephrology Dialysis Transplantation · doi:10.1093/oxfordjournals.ndt.a027160 · Cited by 40 · see citing works
Clinical, biochemical and psychologic effects of psilocybin.
Hollister, L. E. (1961) · PubMed · Cited by 40 · see citing works
Baeocystin in psilocybe, conocybe and panaeolus.
Db, R., Leslie, D. T., & Guzmán, G. (1978) · PubMed · Cited by 38 · see citing works
The psychedelic drug therapies.
Grinspoon, L., & Bakalar, J. B. (1981) · PubMed · Cited by 37 · see citing works
Kamata, T., Nishikawa, M., Katagi, M., & Tsuchihashi, H. (2006) · Forensic Toxicology · doi:10.1007/s11419-006-0006-2 · Cited by 36 · see citing works
Involvement of 5-HT receptor subtypes in the discriminative stimulus properties of mescaline
Appel, J. B., & Callahan, P. M. (1989) · European Journal of Pharmacology · doi:10.1016/0014-2999(89)90041-1 · Cited by 34 · see citing works
Chen, J., Li, M., Yan, X., Wu, E., Zhu, H., Lee, K. J., Chu, V. M., Zhan, L., Lee, W., & Kang, J. S. (2011) · Journal of Chromatography B · doi:10.1016/j.jchromb.2011.07.003 · Cited by 32 · see citing works
II. The Effects of Some Hallucinogens on Aggressiveness of Mice and Rats
Kostowski, W., Rewerski, W., & Piechocki, T. (2008) · Pharmacology · doi:10.1159/000136297 · Cited by 28 · see citing works
Anastos, N., Barnett, N. W., Pfeffer, F. M., & Lewis, S. W. (2006) · Science & Justice · doi:10.1016/s1355-0306(06)71579-9 · Cited by 28 · see citing works
Meldrum, B. S., & Naquet, R. (1971) · Electroencephalography and Clinical Neurophysiology · doi:10.1016/0013-4694(71)90072-1 · Cited by 27 · see citing works
Psilocybin: Biphasic dose-response effects on the acoustic startle reflex in the rat
Davis, M. T., & Walters, J. K. (1977) · Pharmacology Biochemistry and Behavior · doi:10.1016/0091-3057(77)90180-0 · Cited by 26 · see citing works
Psychotropic drugs and related compounds
Usdin, E., & Efron, D. H. (1979) · Medical Entomology and Zoology · Cited by 22 · see citing works
Analysis and Cultivation of Fruit Bodies and Mycelia of Psilocybe bohemica
Gartz, J., & Moller, G. K. (1989) · Biochemie und Physiologie der Pflanzen · doi:10.1016/s0015-3796(89)80023-x · Cited by 20 · see citing works
The Psycholytic Treatment of a Childhood Schizophrenic Girl
Fisher, G. M. (1970) · International Journal of Social Psychiatry · doi:10.1177/002076407001600204 · Cited by 19 · see citing works
[Psychedelic experiences at the onset of productive episodes of endogenous psychoses].
Gouzoulis, E., Hermle, L., & Sass, H. (1994) · PubMed · Cited by 18 · see citing works
Cologno, D., Mazzeo, A., Lecce, B., Mundi, C., Petretta, V., Casucci, G., & d’Onofrio, F. (2012) · Neurological Sciences · doi:10.1007/s10072-012-1066-1 · Cited by 14 · see citing works
Psilocybin: a pharmacological profile.
Hy, A.-E. (1974) · PubMed · Cited by 14 · see citing works
Psilocin: Effects on Behaviour and Brain Serotonin in Mice
Collins, R. L., Ordy, J. M., & Samorajski, T. (1966) · Nature · doi:10.1038/209785a0 · Cited by 13 · see citing works
Distribution patterns of 14-C-psilocin in the brains of various animals.
Hopf, A., & Eckert, H. (1974) · PubMed · Cited by 13 · see citing works
Effects of mescaline and psilocybin on dominance behavior of the rat.
Uyeno, E. T. (1967) · PubMed · Cited by 12 · see citing works
Isolation and Identification of Drugs in Pharmaceuticals, Body Fluids, and Post-Mortem Material
Schwartzman, G. (1969) · Journal of AOAC INTERNATIONAL · doi:10.1093/jaoac/52.5.1118 · Cited by 12 · see citing works
A new species and a new variety of Psilocybe from North America
Stamets, P. E., Beug, M. W., Bigwood, J., et al. (1980) · Mycotaxon · doi:10.5962/p.417274 · Cited by 10 · see citing works
Respuesta de la cefalea en racimos crónica a la psilocibina
Sempere, Á. P., Ruiz, L. B., & Almazán, F. (2006) · Revista de Neurología · doi:10.33588/rn.4309.2006432 · Cited by 10 · see citing works
The psilocybin-induced "state of drunkenness" in normal volunteers and schizophrenics.
Aj, P. (1978) · PubMed · Cited by 9 · see citing works
Unifying electron transfer mechanism for psilocybin and psilocin
Kovacic, P. (2009) · Medical Hypotheses · doi:10.1016/j.mehy.2009.06.022 · Cited by 9 · see citing works
Rynearson, R. R., Wilson, M. R., & Bickford, R. G. (1968) · Mayo Clinic Proceedings · doi:10.1016/s0025-6196(26)01583-1 · Cited by 9 · see citing works
The effects of psilocybin on EEG and behaviour in monkeys.
HORIBE, M. (1974) · PubMed · Cited by 8 · see citing works
Peden, N. R., & Pringle, S. (1982) · The Lancet · doi:10.1016/s0140-6736(82)91422-2 · Cited by 8 · see citing works
Relative potency of amphetamine derivatives and N,N-dimethyltryptamines
Uyeno, E. T. (1971) · Psychopharmacology · doi:10.1007/bf00404382 · Cited by 7 · see citing works
Effects of Psychodysleptics on Aggressive Behavior of Animals
Uyeno, E. T. (2015) · Modern problems of pharmacopsychiatry/Modern trends in pharmacopsychiatry · doi:10.1159/000401053 · Cited by 5 · see citing works
Entheogens, the Conscious Brain and Existential Reality: Part 1
King, C. C. (2012) · Journal of consciousness exploration & research · Cited by 4 · see citing works
Psilocybin and Hallucinogenic Mushrooms
Barceloux, D. G. (2012) · doi:10.1002/9781118105955.ch64 · Cited by 3 · see citing works
[Psilocybin, a new hallucinogen].
Roubicek, J., & Drvota, S. (1960) · PubMed · Cited by 1 · see citing works
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Sorted by citations
Nichols, D. E. (2016) · Pharmacological Reviews · doi:10.1124/pr.115.011478 · Cited by 1,762 · see citing works
dos Santos, R. G., Osório, F. L., Crippa, J. A. S., Riba, J., Zuardi, A. W., & Hallak, J. E. C. (2016) · Therapeutic Advances in Psychopharmacology · doi:10.1177/2045125316638008 · Cited by 306 · see citing works
Metabolism of psilocybin and psilocin: clinical and forensic toxicological relevance
Dinis-Oliveira, R. J. (2017) · Drug Metabolism Reviews · doi:10.1080/03602532.2016.1278228 · Cited by 224 · see citing works
Carbonaro, T. M., Johnson, M. W., Hurwitz, E., & Griffiths, R. R. (2018) · Psychopharmacology · doi:10.1007/s00213-017-4769-4 · Cited by 133 · see citing works
Molecular Mechanisms of Psilocybin and Implications for the Treatment of Depression
Ling, S., Ceban, F., Lui, L. M. W., Lee, Y., Teopiz, K. M., Rodrigues, N. B., Lipsitz, O., Gill, H., Subramaniapillai, M., Mansur, R. B., et al. (2022) · CNS Drugs · doi:10.1007/s40263-021-00877-y · Cited by 127 · see citing works
Barrett, F. S., Carbonaro, T. M., Hurwitz, E., Johnson, M. W., & Griffiths, R. R. (2018) · Psychopharmacology · doi:10.1007/s00213-018-4981-x · Cited by 109 · see citing works
Van Court, R. C., Wiseman, M. S., Meyer, K. W., Ballhorn, D. J., Amses, K. R., Slot, J. C., Dentinger, B. T. M., Garibay-Orijel, R., & Uehling, J. K. (2022) · Fungal Biology · doi:10.1016/j.funbio.2022.01.003 · Cited by 94 · see citing works
Psychedelics, Sociality, and Human Evolution
Rodríguez Arce, J. M., & Winkelman, M. J. (2021) · Frontiers in Psychology · doi:10.3389/fpsyg.2021.729425 · Cited by 86 · see citing works
Psilocybin in neuropsychiatry: a review of its pharmacology, safety, and efficacy
Dodd, S., Norman, T. R., Eyre, H. A., Stahl, S. M., Phillips, A., Carvalho, A. F., & Berk, M. (2023) · CNS Spectrums · doi:10.1017/s1092852922000888 · Cited by 73 · see citing works
Gotvaldová, K., Hájková, K., Borovička, J., Jurok, R., Cihlářová, P., & Kuchař, M. (2021) · Drug Testing and Analysis · doi:10.1002/dta.2950 · Cited by 67 · see citing works
Psilocybin for Trauma-Related Disorders
Khan, A. J., Bradley, E., O’Donovan, A., & Woolley, J. (2022) · Current Topics in Behavioral Neurosciences · doi:10.1007/7854_2022_366 · Cited by 55 · see citing works
Extensive Collection of Psychotropic Mushrooms with Determination of Their Tryptamine Alkaloids
Gotvaldová, K., Borovička, J., Hájková, K., Cihlářová, P., Rockefeller, A., & Kuchař, M. (2022) · International Journal of Molecular Sciences · doi:10.3390/ijms232214068 · Cited by 53 · see citing works
Studies with psychedelic drugs in human volunteers
Sellers, E. M., Romach, M. K., & Leiderman, D. B. (2018) · Neuropharmacology · doi:10.1016/j.neuropharm.2017.11.029 · Cited by 42 · see citing works
Castro Santos, H., & Gama Marques, J. (2021) · Porto Biomedical Journal · doi:10.1097/j.pbj.0000000000000128 · Cited by 37 · see citing works
Ching, T. H. W., Grazioplene, R., Bohner, C., Kichuk, S. A., DePalmer, G., D’Amico, E., Eilbott, J., Jankovsky, A., Burke, M., Hokanson, J., et al. (2023) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2023.1178529 · Cited by 29 · see citing works
Buot, A., Pallares, C., Oganesyan, A., Dauré, C., Bonnelle, V., Burguière, E., Dos Santos, J. F. A., N’Diaye, K., Ljuslin, M., Smith, P., et al. (2023) · Scientific Reports · doi:10.1038/s41598-023-39812-0 · Cited by 28 · see citing works
Psilocybin, an Effective Treatment for Major Depressive Disorder in Adults - A Systematic Review
Watford, T., & Masood, N. (2024) · Clinical Psychopharmacology and Neuroscience · doi:10.9758/cpn.23.1120 · Cited by 23 · see citing works
Kurzbaum, E., Páleníček, T., Sharchaton, A., Azerrad, S., & Dekel, Y. (2025) · Journal of Fungi · doi:10.3390/jof11020099 · Cited by 15 · see citing works
Self-citationVanderijst, L., Hever, F., Buot, A., Dauré, C., Benoit, J., Hanak, C., Veeser, J., Morgiève, M., Campanella, S., Kornreich, C., et al. (2024) · BMC Psychiatry · doi:10.1186/s12888-024-05502-y · Cited by 13 · see citing works
“These compounds present very low long-term toxicity [9, 10], are not associated with addiction [9, 11, 12] and have shown a favorable safety profile when used in clinical settings under therapeutic supervision [13].”
BackgroundChing, T. H. W., Stahnke, B., Shnayder, S., Agin-Liebes, G., Adams, T. G., Amoroso, L., Baiz, O., Belser, A., Bohner, C., Burke, M., et al. (2025) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2025.1726818 · Cited by 6 · see citing works
- Authors
- Tylš, F., Páleníček, T., & Horáček, J.
- Affiliations
- Charles University (CZ)
- Corresponding author
- Tylš, Filip
- Venue
- European Neuropsychopharmacology
- Publisher
- Elsevier BV
- Published
- 2014-03
- Volume
- 24
- Issue
- 3
- Pages
- 342-356
- ISSN
- 0924-977X (ISSN-L)
- OpenAlex
- W2092517056
- Cited by
- 276
- References
- 142
- Citations by year
- 2026: 32 · 2025: 34 · 2024: 35 · 2023: 26 · 2022: 36 · 2021: 28 · 2020: 14 · 2019: 16 · 2018: 24 · 2017: 8 · 2016: 16 · 2015: 5 · 2014: 2
- FWCI
- 1.12
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- European Neuropsychopharmacology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- IGA MHCR (NT/13897)
- Topics
- Social Sciences › Psychology › Clinical Psychology › Psychedelics and Drug Studies
- Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Toxicology › Forensic Toxicology and Drug Analysis
- Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Alkaloids: synthesis and pharmacology
- Keywords
- psilocybin, hallucinogenic mushrooms, psychedelics, pharmacokinetics, pharmacodynamics, psychometric assessment
- MeSH terms
- Animals, Behavior, Animal, Brain, Hallucinogens, Humans, Psilocybin, Substance-Related Disorders
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