Novel Drugs of Abuse
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Anaesthesia and Past Use Of
177 Correspondence were using LSD. It is more popular than other commonly Anaesthesia and past use of used hallucinogens whose quoted incidence of clients are: LSD ketamine 0.1% (super-K/vitamin K.I), psilocybin and psilocin 0.6% (the active alkaloids in the Mexican "magic To the Editor: mushroom"), and 3,4 methylenedioxymethamphetamine We report the case of a 43-yr-old lady who was admitted ~MDMA" 1% (ecstasy). The effects of the concurrent to the Day Surgery Unit for release of her carpal tunnel ingestion of LSD on anaesthesia are well described. 2-4 retinaculum. During the preoperative visit, she reported The long-term effects of the past use of LSD are largely no intercurrent illnesses, drug therapy or allergies. She unknown. We wonder if the hallucinations experienced did say, however, that she was frightened of general anaes- by our patient during anaesthesia were due to her LSD thesia, since she had experienced terrifying dreams during intake many years before. We would be interested to surgery under general anaesthesia on three occasions dur- know if others have had experience anaesthetising patients ing the previous ten years. On further questioning, she who are past users of phencyclidine-derived drugs. admitted that she had used lysergic acid diethylamide (LSD) during the late 1960's, the last occasion being 1968 Geoffrey N. Morris MRCGPFRCA when she had experienced characterstic hallucinations. Patrick T. Magee MSe FRCA She had not experienced hallucinations in the ensuing Anaesthetic Department years, except on the surgical occasions mentioned. Royal United Hospital One of the three previous operations had been per- Combe Park formed at our hospital and the anaesthetic record was Bath BA1 3NG checked. -
Evidence for the Involvement of Spinal Cord 1 Adrenoceptors in Nitrous
Anesthesiology 2002; 97:1458–65 © 2002 American Society of Anesthesiologists, Inc. Lippincott Williams & Wilkins, Inc. Evidence for the Involvement of Spinal Cord ␣ 1 Adrenoceptors in Nitrous Oxide–induced Antinociceptive Effects in Fischer Rats Ryo Orii, M.D., D.M.Sc.,* Yoko Ohashi, M.D.,* Tianzhi Guo, M.D.,† Laura E. Nelson, B.A.,‡ Toshikazu Hashimoto, M.D.,* Mervyn Maze, M.B., Ch.B.,§ Masahiko Fujinaga, M.D.ʈ Background: In a previous study, the authors found that ni- opioid peptide release in the brain stem, leading to the trous oxide (N O) exposure induces c-Fos (an immunohisto- 2 activation of the descending noradrenergic inhibitory chemical marker of neuronal activation) in spinal cord ␥-ami- nobutyric acid–mediated (GABAergic) neurons in Fischer rats. neurons, which results in modulation of the pain–noci- 1 In this study, the authors sought evidence for the involvement ceptive processing in the spinal cord. Available evi- Downloaded from http://pubs.asahq.org/anesthesiology/article-pdf/97/6/1458/337059/0000542-200212000-00018.pdf by guest on 01 October 2021 ␣ of 1 adrenoceptors in the antinociceptive effect of N2O and in dence suggests that at the level of the spinal cord, there activation of GABAergic neurons in the spinal cord. appear to be at least two neuronal systems that are Methods: Adult male Fischer rats were injected intraperitone- involved (fig. 1). In one of the pathways, activation of ally with ␣ adrenoceptor antagonist, ␣ adrenoceptor antago- 1 2 ␣ nist, opioid receptor antagonist, or serotonin receptor antago- the 2 adrenoceptors produces either direct presynaptic nist and, 15 min later, were exposed to either air (control) or inhibition of neurotransmitter release from primary af- 75% N2O. -
5-HT2A and 5-HT2C/2B Receptor Subtypes Modulate
5-HT2A and 5-HT2C/2B Receptor Subtypes Modulate Dopamine Release Induced in Vivo by Amphetamine and Morphine in Both the Rat Nucleus Accumbens and Striatum Grégory Porras, M.S., Vincenzo Di Matteo, Ph.D., Claudia Fracasso, B.S., Guillaume Lucas, Ph.D., Philippe De Deurwaerdère, Ph.D., Silvio Caccia, Ph.D., Ennio Esposito, M.D., Ph.D., and Umberto Spampinato, M.D., Ph.D. In vivo microdialysis and single-cell extracellular neuron firing rate in both the ventral tegmental area and recordings were used to assess the involvement of the substantia nigra pars compacta was unaffected by SR serotonin2A (5-HT2A) and serotonin2C/2B (5-HT2C/2B) 46349B (0.1 mg/kg i.v.) but significantly potentiated by SB receptors in the effects induced by amphetamine and 206553 (0.1 mg/kg i.v.). These results show that 5-HT2A morphine on dopaminergic (DA) activity within the and 5-HT2C receptors regulate specifically the activation of mesoaccumbal and nigrostriatal pathways. The increase in midbrain DA neurons induced by amphetamine and DA release induced by amphetamine (2 mg/kg i.p.) in the morphine, respectively. This differential contribution may nucleus accumbens and striatum was significantly reduced be related to the specific mechanism of action of the drug by the selective 5-HT2A antagonist SR 46349B (0.5 mg/kg considered and to the neuronal circuitry involved in their s.c.), but not affected by the 5-HT2C/2B antagonist SB effect on DA neurons. Furthermore, these results suggest 206553 (5 mg/kg i.p.). In contrast, the enhancement of that 5-HT2C receptors selectively modulate the impulse accumbal and striatal DA output induced by morphine (2.5 flow–dependent release of DA. -
Neurological Complications of Nitrous Oxide Abuse
Katherine Shoults, MD Case report: Neurological complications of nitrous oxide abuse A patient who presented with limb paresthesia and B12 deficiency was eventually diagnosed with subacute combined degeneration neuropathy secondary to nitrous oxide abuse. Case data ABSTRACT: A 34-year-old female ary to nitrous oxide (“laughing gas”) A 34-year-old female presented with with a history of alcohol and crystal abuse that had affected B12 activa- a 2-week history of progressive bilat- methamphetamine abuse presented tion. The patient was continued on eral limb paresthesia and tenderness, to the emergency department with B12 therapy, neurology follow-up as well as an inability to balance. She limb paresthesia and difficulty walk- was arranged, and addiction coun- had been well previously, although ing. At a primary care visit a week seling services were recommended. she did have a history of alcohol and earlier her progressive neurological Unfortunately, the patient was lost crystal methamphetamine abuse. She compromise had been viewed in the to follow-up after discharge from the had abstained from crystal metham- context of anemia and she was start- hospital. Physicians should be aware phetamine for 5 years and from alco- ed on daily B12 injections. Further that nitrous oxide is easy to acquire hol for 2 months. She was working as a investigations in hospital revealed in the form of commercially available care aid and denied using illegal drugs diminished proprioception, hyperal- cartridges or whipped cream canis- currently, but reported she had been gesia with pinprick and temperature ters called “whippits” and abuse of inhaling nitrous oxide (“laughing tests, a wide-based high-steppage nitrous oxide is increasingly com- gas”) for 6 months, with an escalation gait, elevated levels of B12 and ho- mon. -
From Sacred Plants to Psychotherapy
From Sacred Plants to Psychotherapy: The History and Re-Emergence of Psychedelics in Medicine By Dr. Ben Sessa ‘The rejection of any source of evidence is always treason to that ultimate rationalism which urges forward science and philosophy alike’ - Alfred North Whitehead Introduction: What exactly is it that fascinates people about the psychedelic drugs? And how can we best define them? 1. Most psychiatrists will define psychedelics as those drugs that cause an acute confusional state. They bring about profound alterations in consciousness and may induce perceptual distortions as part of an organic psychosis. 2. Another definition for these substances may come from the cross-cultural dimension. In this context psychedelic drugs may be recognised as ceremonial religious tools, used by some non-Western cultures in order to communicate with the spiritual world. 3. For many lay people the psychedelic drugs are little more than illegal and dangerous drugs of abuse – addictive compounds, not to be distinguished from cocaine and heroin, which are only understood to be destructive - the cause of an individual, if not society’s, destruction. 4. But two final definitions for psychedelic drugs – and those that I would like the reader to have considered by the end of this article – is that the class of drugs defined as psychedelic, can be: a) Useful and safe medical treatments. Tools that as adjuncts to psychotherapy can be used to alleviate the symptoms and course of many mental illnesses, and 1 b) Vital research tools with which to better our understanding of the brain and the nature of consciousness. Classifying psychedelic drugs: 1,2 The drugs that are often described as the ‘classical’ psychedelics include LSD-25 (Lysergic Diethylamide), Mescaline (3,4,5- trimethoxyphenylathylamine), Psilocybin (4-hydroxy-N,N-dimethyltryptamine) and DMT (dimethyltryptamine). -
The Psytrance Party
THE PSYTRANCE PARTY C. DE LEDESMA M.Phil. 2011 THE PSYTRANCE PARTY CHARLES DE LEDESMA A thesis submitted in partial fulfilment of the requirements of the School of Humanities and Social Sciences, University of East London for the degree of Master of Philosophy August 2011 Abstract In my study, I explore a specific kind of Electronic Dance Music (EDM) event - the psytrance party to highlight the importance of social connectivity and the generation of a modern form of communitas (Turner, 1969, 1982). Since the early 90s psytrance, and a related earlier style, Goa trance, have been understood as hedonist music cultures where participants seek to get into a trance-like state through all night dancing and psychedelic drugs consumption. Authors (Cole and Hannan, 1997; D’Andrea, 2007; Partridge, 2004; St John 2010a and 2010b; Saldanha, 2007) conflate this electronic dance music with spirituality and indigene rituals. In addition, they locate psytrance in a neo-psychedelic countercultural continuum with roots stretching back to the 1960s. Others locate the trance party events, driven by fast, hypnotic, beat-driven, largely instrumental music, as post sub cultural and neo-tribal, representing symbolic resistance to capitalism and neo liberalism. My study is in partial agreement with these readings when applied to genre history, but questions their validity for contemporary practice. The data I collected at and around the 2008 Offworld festival demonstrates that participants found the psytrance experience enjoyable and enriching, despite an apparent lack of overt euphoria, spectacular transgression, or sustained hedonism. I suggest that my work adds to an existing body of literature on psytrance in its exploration of a dance music event as a liminal space, redolent with communitas, but one too which foregrounds mundane features, such as socialising and pleasure. -
Synthetic Drugs: Overview and Issues for Congress
Synthetic Drugs: Overview and Issues for Congress Lisa N. Sacco Analyst in Illicit Drugs and Crime Policy Kristin Finklea Specialist in Domestic Security May 3, 2016 Congressional Research Service 7-5700 www.crs.gov R42066 Synthetic Drugs: Overview and Issues for Congress Summary Synthetic drugs, as opposed to natural drugs, are chemically produced in a laboratory. Their chemical structure can be either identical to or different from naturally occurring drugs, and their effects are designed to mimic or even enhance those of natural drugs. When produced clandestinely, they are not typically controlled pharmaceutical substances intended for legitimate medical use. Designer drugs are a form of synthetic drugs. They contain slightly modified molecular structures of illegal or controlled substances, and they are modified in order to circumvent existing drug laws. While the issue of synthetic drugs and their abuse is not new, Congress has demonstrated a renewed concern with the issue. From 2009 to 2011, synthetic drug abuse was reported to have dramatically increased. During this time period, calls to poison control centers for incidents relating to harmful effects of synthetic cannabinoids (such as “K2” and “Spice”) and stimulants (such as “bath salts”) increased at what some considered to be an alarming rate. The number of hospital emergency department visits involving synthetic cannabinoids more than doubled from 2010 to 2011. In 2012 and 2013, however, the number of calls to poison control centers for incidents relating to harmful effects of synthetic cannabinoids and synthetic stimulants decreased. Calls regarding bath salts have declined each year since 2011, while calls regarding synthetic cannabinoids have increased since the drops in 2012 and 2013. -
Pharmacology – Inhalant Anesthetics
Pharmacology- Inhalant Anesthetics Lyon Lee DVM PhD DACVA Introduction • Maintenance of general anesthesia is primarily carried out using inhalation anesthetics, although intravenous anesthetics may be used for short procedures. • Inhalation anesthetics provide quicker changes of anesthetic depth than injectable anesthetics, and reversal of central nervous depression is more readily achieved, explaining for its popularity in prolonged anesthesia (less risk of overdosing, less accumulation and quicker recovery) (see table 1) Table 1. Comparison of inhalant and injectable anesthetics Inhalant Technique Injectable Technique Expensive Equipment Cheap (needles, syringes) Patent Airway and high O2 Not necessarily Better control of anesthetic depth Once given, suffer the consequences Ease of elimination (ventilation) Only through metabolism & Excretion Pollution No • Commonly administered inhalant anesthetics include volatile liquids such as isoflurane, halothane, sevoflurane and desflurane, and inorganic gas, nitrous oxide (N2O). Except N2O, these volatile anesthetics are chemically ‘halogenated hydrocarbons’ and all are closely related. • Physical characteristics of volatile anesthetics govern their clinical effects and practicality associated with their use. Table 2. Physical characteristics of some volatile anesthetic agents. (MAC is for man) Name partition coefficient. boiling point MAC % blood /gas oil/gas (deg=C) Nitrous oxide 0.47 1.4 -89 105 Cyclopropane 0.55 11.5 -34 9.2 Halothane 2.4 220 50.2 0.75 Methoxyflurane 11.0 950 104.7 0.2 Enflurane 1.9 98 56.5 1.68 Isoflurane 1.4 97 48.5 1.15 Sevoflurane 0.6 53 58.5 2.5 Desflurane 0.42 18.7 25 5.72 Diethyl ether 12 65 34.6 1.92 Chloroform 8 400 61.2 0.77 Trichloroethylene 9 714 86.7 0.23 • The volatile anesthetics are administered as vapors after their evaporization in devices known as vaporizers. -
Psilocybin Mushrooms Fact Sheet
Psilocybin Mushrooms Fact Sheet January 2017 What are psilocybin, or “magic,” mushrooms? For the next two decades thousands of doses of psilocybin were administered in clinical experiments. Psilocybin is the main ingredient found in several types Psychiatrists, scientists and mental health of psychoactive mushrooms, making it perhaps the professionals considered psychedelics like psilocybin i best-known naturally-occurring psychedelic drug. to be promising treatments as an aid to therapy for a Although psilocybin is considered active at doses broad range of psychiatric diagnoses, including around 3-4 mg, a common dose used in clinical alcoholism, schizophrenia, autism spectrum disorders, ii,iii,iv research settings ranges from 14-30 mg. Its obsessive-compulsive disorder, and depression.xiii effects on the brain are attributed to its active Many more people were also introduced to psilocybin metabolite, psilocin. Psilocybin is most commonly mushrooms and other psychedelics as part of various found in wild or homegrown mushrooms and sold religious or spiritual practices, for mental and either fresh or dried. The most popular species of emotional exploration, or to enhance wellness and psilocybin mushrooms is Psilocybe cubensis, which is creativity.xiv usually taken orally either by eating dried caps and stems or steeped in hot water and drunk as a tea, with Despite this long history and ongoing research into its v a common dose around 1-2.5 grams. therapeutic and medical benefits,xv since 1970 psilocybin and psilocin have been listed in Schedule I of the Controlled Substances Act, the most heavily Scientists and mental health professionals criminalized category for drugs considered to have a consider psychedelics like psilocybin to be “high potential for abuse” and no currently accepted promising treatments as an aid to therapy for a medical use – though when it comes to psilocybin broad range of psychiatric diagnoses. -
PSYCHEDELIC DRUGS (P.L) 1. Terminology “Hallucinogens
PSYCHEDELIC DRUGS (p.l) 1. Terminology “hallucinogens” – induce hallucinations, although sensory distortions are more common “psychotomimetics” – to minic psychotic states, although truly most drugs in this class do not do so “phantasticums”or “psychedelics” – alter sensory perception (Julien uses “psychedelics”) alterations in perception, cognition, and mood, in presence of otherwise clear ability to sense” may increase sensory awareness, increase clarity, decrease control over what is sensed/experienced “self-A” may feel a passive observer of what “self-B” is experiencing often accompanied by a sense of profound meaningfulness, of divine or cosmic importance (limbic system?) these drugs can be classified by what NT they mimic: anti-ACh, agonists for NE, 5HT, or glutamate (See p. 332, Table 12.l in Julien, 9th Ed.) 2. The Anti-ACh Psychedelics e.g. scopolamine (classified as an ACh blocker) high affinity, no efficacy plant product: Belladonna or “deadly nightshade” (Atropa belladonna) Datura stramonium (jimson weed, stinkweed) Mandragora officinarum (mandrake plant) pupillary dilation (2nd to atropine) PSYCHEDELIC DRUGS (p.2) 2. Anti-ACh Psychedelics (cont.) pharmacological effects: e.g. scopolamine (Donnatal) clinically used to tx motion sickness, relax smooth muscles (gastric cramping), mild sedation/anesthetic effect PNS effects --- dry mouth relaxation of smooth muscles decreased sweating increased body temperature blurred vision dry skin pupillary dilation tachycardia, increased BP CNS effects --- drowsiness, mild euphoria profound amnesia fatigue decreased attention, focus delirium, mental confusion decreased REM sleep no increase in sensory awareness as dose increases --- restlessness, excitement, hallucinations, euphoria, disorientation at toxic dose levels --- “psychotic delirium”, confusion, stupor, coma, respiratory depression so drug is really an intoxicant, amnestic, and deliriant 3. -
Multidisciplinary Association for Psychedelic Studies
MULTIDISCIPLINARY ASSOCIATION FOR PSYCHEDELIC STUDIES VOLUME X NUMBER 3 PSYCHEDELICS & CREATIVITY 2 m a p s • v o l u m e X n u m b e r 3 • c r e a t i v i t y 2 0 0 0 Creativity 2000 MAPS (Multidisciplinary Association for 1 Introductions Psychedelic Studies) is a membership-based Rick Doblin, Ph.D., Jon Hanna and Sylvia Thyssen organization working to assist psychedelic 4 Psychedelics and the Creation of Virtual Reality researchers around the world design, obtain Excerpted from an interview with Mark Pesce governmental approval, fund, conduct and report on psychedelic research in humans. 6 Visionary Community at Burning Man Founded in 1986, MAPS is an IRS approved By Abrupt 501 (c)(3) non-profit corporation funded 9 The Creative Process and Entheogens by tax-deductible donations. MAPS has Adapted from The Mission of Art previously funded basic scientific research By Alex Grey into the safety of MDMA (3,4-methylene- 12 Left Hand, Wide Eye dioxymethamphetamine, Ecstasy) and has By Connor Freff Cochran opened a Drug Master File for MDMA at the U.S. Food and Drug Administration. MAPS is 17 Huxley on Drugs and Creativity Excerpted from a 1960 interview for The Paris Review now focused primarily on assisting scientists to conduct human studies to generate 18 Ayahuasca and Creativity essential information about the risks and By Benny Shanon, Ph.D. psychotherapeutic benefits of MDMA, other 20 MAPS Members Share Their Experiences psychedelics, and marijuana, with the goal Anecdotes by Abram Hoffer, M.D., Ph.D., FRCP(C), of eventually gaining government Dean Chamberlain, Dan Merkur, Ph.D., Sam Patterson, approval for their medical uses. -
Ecstasy and Club Drugs
Ecstasy and Club Drugs The term “club drug” refers to drugs being used by youth and young adults at all-night dance parties such as “raves” or “trances,” dance clubs and bars. MDMA (Ecstasy), GHB, Rohypnol, Ketamine, Methamphetamine, and LSD are among the drugs referred to as “club drugs.” “Raves” are a form of dance and recreation that is held in a clandestine location with fast-paced, high-volume music, a variety of high-tech entertainment and usually the use of “club drugs.” Ecstasy Ecstasy or MDMA (methylenedioxymethamphetamine) is a stimulant that combines the properties of methamphetamine or “speed” with mind-altering or hallucinogenic properties. It is considered to be the most commonly used club (or “designer” drug). Ecstasy is an illegal drug (it was declared illegal by the federal government in 1985) 90% of which is manufactured in the Netherlands and Belgium. In its most common form, Ecstasy is a small tablet that is impressed with any one of a number of logos intended to attract young people. It can also be in capsule or powder form and can be injected. Among the street names for Ecstasy are Adam, X-TC, Clarity, Essence, Stacy, Lover’s Speed, Eve, etc. The Ecstasy high can last from 6 to 24 hours, with the average “trip” lasting only about 3-4 hours. Users of Ecstasy report that it causes mood changed and loosens their inhibitions; they become more outgoing, empathetic and affectionate. For this reason, Ecstasy has been called the “hug drug.” It also suppresses the need to eat, drink or sleep, enabling users to endure parties that can last for two or three days.