Club Drugs (GHB, Ketamine, and Rohypnol)

Total Page:16

File Type:pdf, Size:1020Kb

Club Drugs (GHB, Ketamine, and Rohypnol) Club Drugs (GHB, Ketamine, and Rohypnol) Club drugs are a pharmacologically medical use in this country, and its heterogeneous group of psychoactive drugs importation is banned. that tend to be abused by teens and young • Ketamine is a dissociative anesthetic, adults at bars, nightclubs, concerts, and mostly used in veterinary practice. parties. Gamma hydroxybutyrate (GHB), Rohypnol, ketamine, as well as MDMA How Are Club Drugs Abused? (ecstasy) and methamphetamine (which are featured in separate DrugFacts) are some of • GHB and Rohypnol are available in the drugs included in this group. odorless, colorless, and tasteless forms that are frequently combined • GHB (Xyrem) is a central nervous with alcohol and other beverages. system (CNS) depressant that was Both drugs have been used to commit approved by the Food and Drug sexual assaults (also known as “date Administration (FDA) in 2002 for use in rape,” “drug rape,” “acquaintance the treatment of narcolepsy (a sleep rape,” or “drug-assisted” assault) due disorder). This approval came with to their ability to sedate and severe restrictions, including its use incapacitate unsuspecting victims, only for the treatment of narcolepsy, preventing them from resisting sexual and the requirement for a patient assault. registry monitored by the FDA. GHB is • GHB is usually ingested orally, either also a metabolite of the inhibitory in liquid or powder form, while neurotransmitter gamma-aminobutyric Rohypnol is typically taken orally in acid (GABA). It exists naturally in the pill form. Recent reports, however, brain, but at much lower concentrations have shown that Rohypnol is being than those found when GHB is abused. ground up and snorted. • Rohypnol (flunitrazepam) use began • Both GHB and Rohypnol are also gaining popularity in the United States abused for their intoxicating effects, in the early 1990s. It is a similar to other CNS depressants. benzodiazepine (chemically similar to • GHB also has anabolic effects (it sedative-hypnotic drugs such as Valium stimulates protein synthesis) and has or Xanax), but it is not approved for been used by bodybuilders to aid in fat reduction and muscle building. Club Drugs • December 2014 • Page 1 • Ketamine is usually snorted or Ketamine users can develop signs of injected intramuscularly. tolerance and cravings for the drug.4 How Do Club Drugs Affect the Brain? What Other Adverse Effects Do Club Drugs Have on Health? • GHB acts on at least two sites in the brain: the GABAB receptor and a Uncertainties about the sources, chemicals, specific GHB binding site. At high and possible contaminants used to doses, GHB’s sedative effects may manufacture many club drugs make it result in sleep, coma, or death. extremely difficult to determine toxicity • Rohypnol, like other benzodiazepines, and associated medical consequences. acts at the GABAA receptor. It can Nonetheless, we do know that: produce anterograde amnesia, in • Coma and seizures can occur following which individuals may not remember use of GHB. Combined use with other events they experienced while under drugs such as alcohol can result in the influence of the drug. nausea and breathing difficulties. GHB • Ketamine is a dissociative anesthetic, and two of its precursors, gamma so called because it distorts butyrolactone (GBL) and 1,4 perceptions of sight and sound and butanediol (BD), have been involved produces feelings of detachment from in poisonings, overdoses, date rapes, the environment and self. Ketamine and deaths. acts on a type of glutamate receptor • Rohypnol may be lethal when mixed (NMDA receptor) to produce its with alcohol and/or other CNS effects, which are similar to those of depressants. the drug PCP.1,2 Low-dose intoxication • Ketamine, in high doses, can cause results in impaired attention, learning impaired motor function, high blood ability, and memory. At higher doses, pressure, and potentially fatal ketamine can cause dreamlike states respiratory problems. and hallucinations; and at higher doses still, ketamine can cause What Treatment Options Exist? delirium and amnesia. There is very little information available in the scientific literature about treatment for Addictive Potential persons who abuse or are dependent upon • Repeated use of GHB may lead to club drugs. withdrawal effects, including • There are no GHB detection tests for insomnia, anxiety, tremors, and use in emergency rooms, and as many sweating. Severe withdrawal reactions clinicians are unfamiliar with the drug, have been reported among patients many GHB incidents likely go presenting from an overdose of GHB undetected. According to case reports, or related compounds, especially if however, patients who abuse GHB other drugs or alcohol are involved.3 appear to present both a mixed • Like other benzodiazepines, chronic use picture of severe problems upon of Rohypnol can produce tolerance, admission and a good response to physical dependence, and addiction. treatment, which often involves • There have been reports of people residential services.3 binging on ketamine, a behavior that is • Treatment for Rohypnol follows similar to that seen in some cocaine- or accepted protocols for any amphetamine-dependent individuals. benzodiazepine, which may consist of a 3- to 5-day inpatient detoxification Club Drugs • December 2014 • Page 2 program with 24-hour intensive the peak year of 2002, in which 2.6 percent medical monitoring and management reported past-year use. of withdrawal symptoms, since withdrawal from benzodiazepines can For Rohypnol, 0.3 percent of 8th-graders, be life-threatening.3 0.5 percent of 10th-graders, and 0.7 percent • Patients with a ketamine overdose are of 12th-graders reported past-year use, also managed through supportive care for down from peak use in 1996 for 8th- acute symptoms, with special graders (1.0 percent), 1997 for 10th- attention to cardiac and respiratory graders (1.3 percent), and 2002 and 2004 functions.5 for 12th-graders (1.6 percent). How Widespread Is Club Drug Abuse? Learn More For additional information about club Monitoring the Future (MTF) Survey* drugs, visit www.drugabuse.gov/drugs- MTF has reported consistently low levels of abuse/club-drugs. abuse of these club drugs since they were added to the survey. For GHB and ketamine, Data Sources this occurred in 2000; for Rohypnol, 1996. * These data are from the 2014 Monitoring According to results of the 2014 MTF the Future survey, funded by the National survey, 1.0 percent of 12th-grade students Institute on Drug Abuse, National Institutes reported past-year use of GHB, a of Health, U.S. Department of Health and statistically significant decrease from peak- Human Services, and conducted annually by year use of 2.0 percent in 2004. GHB use the University of Michigan’s Institute for among 8th- and 10th-grade students was Social Research. The survey has tracked not reported. 12th-graders’ illicit drug use and related attitudes since 1975; in 1991, 8th- and Past-year use of ketamine was reported by 10th-graders were added to the study. 1.4 percent of 12th-graders in 2014. This also represents a significant decrease from 1 Anis NA, Berry SC, Burton NR, Lodge D. The dissociative anaesthetics, datamine and phencyclidine, selectively reduce excitation of central mammalian neurons by N-methyl-aspartate. Br J Pharmacol. 1983;79(2):565-575. 2 Kapur S, Seeman P. NMDA receptor antagonists ketamine and PCP have direct effects on dopamine D2 and serotonin 5-HT2 receptors – Implications for models of schizophrenia. Molecular Psychiatry. 2002;7:837-844. 3 Maxwell JC, Spence RT. Profiles of club drug users in treatment. Subst Use Misuse. 2005;40(9–10):1409- 1426. 4 Jansen KL, Darracot-Cankovic R. The nonmedical use of ketamine, part two: A review of problem use and dependence. J Psychoactive Drugs. 2001;33(2):151-158. 5 Smith KM, Larive LL, Romanelli F. Club Drugs: Methylenedioxymethamphetamine, flunitrazepam, ketamine –hydroxybutyrate. Am J Health-Syst Pharm. 2002;59(11):1067-1076. hydrochloride, and γ Club Drugs • December 2014 • Page 3 .
Recommended publications
  • Ketamine As a Rapid Antidepressant
    BJPsych Advances (2016), vol. 22, 222–233 doi: 10.1192/apt.bp.114.014274 ARTICLE Ketamine as a rapid anti depressant: the debate and implications Roger C. M. Ho & Melvyn W. Zhang Roger Ho is an Associate Professor response rates to SSRIs and NaSSAs are around SUMMARY and consultant psychiatrist in 62% and 67% respectively (Papakostas 2008). the Department of Psychological Ketamine, a synthetic derivative of phencyclidine, Environmental factors such as relationship Medicine, Yong Loo Lin School of is a commonly misused party drug that is Medicine, National University of problems, financial difficulties and comorbid restricted in high-income countries because of Singapore. He has a special interest substance misuse often lead to poor treatment its addictive potential. Ketamine is also used as in psychoneuroimmunology and response, and antidepressants combined with the interface between medicine an anaesthetic in human and veterinary medicine. and psychiatry. Melvyn Zhang In the 1990s, research using ketamine to study the CBT have shown promising results in prevention is a senior resident with the pathophysiology of schizophrenia was terminated of mood disorders (Brenner 2010). Although 70– National Addiction Management owing to ethical concerns. Recently, controversy 90% of patients with depression achieve remission, Service, Institute of Mental Health, surrounding the drug has returned, as researchers around 10–30% are refractory to initial treatment Singapore. Correspondence Dr Roger C. M. have demonstrated that intravenous ketamine but respond to switching or combination of Ho, National University of Singapore, infusion has a rapid antidepressant effect and antidepressants, electroconvulsive therapy (ECT) Department of Psychological have therefore proposed ketamine as a novel or psychotherapy.
    [Show full text]
  • Hallucinogens - LSD, Peyote, Psilocybin, and PCP
    Information for Behavioral Health Providers in Primary Care Hallucinogens - LSD, Peyote, Psilocybin, and PCP What are Hallucinogens? Hallucinogenic compounds found in some plants and mushrooms (or their extracts) have been used— mostly during religious rituals—for centuries. Almost all hallucinogens contain nitrogen and are classified as alkaloids. Many hallucinogens have chemical structures similar to those of natural neurotransmitters (e.g., acetylcholine-, serotonin-, or catecholamine-like). While the exact mechanisms by which hallucinogens exert their effects remain unclear, research suggests that these drugs work, at least partially, by temporarily interfering with neurotransmitter action or by binding to their receptor sites. This InfoFacts will discuss four common types of hallucinogens: LSD (d-lysergic acid diethylamide) is one of the most potent mood-changing chemicals. It was discovered in 1938 and is manufactured from lysergic acid, which is found in ergot, a fungus that grows on rye and other grains. Peyote is a small, spineless cactus in which the principal active ingredient is mescaline. This plant has been used by natives in northern Mexico and the southwestern United States as a part of religious ceremonies. Mescaline can also be produced through chemical synthesis. Psilocybin (4-phosphoryloxy-N, N-dimethyltryptamine) is obtained from certain types of mushrooms that are indigenous to tropical and subtropical regions of South America, Mexico, and the United States. These mushrooms typically contain less than 0.5 percent psilocybin plus trace amounts of psilocin, another hallucinogenic substance. PCP (phencyclidine) was developed in the 1950s as an intravenous anesthetic. Its use has since been discontinued due to serious adverse effects. How Are Hallucinogens Abused? The very same characteristics that led to the incorporation of hallucinogens into ritualistic or spiritual traditions have also led to their propagation as drugs of abuse.
    [Show full text]
  • Methadone Information Your Safety and the Safety of Everyone
    Methadone Information Your Safety and the Safety of Everyone Methadone, when taken as prescribed is safe. Methadone taken by any individual it is NOT prescribed to, can be deadly; and when mixed with other drugs, can be deadly; and in the hands of a child, is most certainly deadly. Why? Because it is often difficult to know what other drugs including prescription medications others are being prescribed including herbal/ natural medications; and because unless you are a pharmacist or an experienced physician who is knowledgeable about METHADONE you truly don’t know what will happen when medications are mixed. Treatment Rules and Regulations clearly state: “It is extremely important that medication (this means METHADONE!) be stored in a VERY secure place away from children once the patient takes it to their home. It is not advisable to store the medication in the refrigerator unless it is in a locked, childproof container.” “Patients are not to give away… (Take) home medications (methadone).”It is clearly stated in Rules and Regulations that “Children cannot be held while dosing.” “…The mixing of chemicals may be harmful or fatal.” This is why Locked boxes must meet stringent criteria; to protect you, and those around you. Methadone is a Central Nervous System (CNS) Depressant. This means that Methadone slows down all your central nervous systems including breathing, heart rate, Some medications should NEVER be taken with methadone because they too are CNS depressants. These include alcohol, Benzodiazepines, Naltrexone, Soma, other Opiates and Barbiturates. These drugs taken together potentiate or add to each other: 1+1 no longer = 2; it equals 5 or more If you are a child or anyone the drug is NOT prescribed for you may not know you are in danger as your heart slows, and your breathing becomes shallower and then you die.
    [Show full text]
  • Substance Abuse and Dependence
    9 Substance Abuse and Dependence CHAPTER CHAPTER OUTLINE CLASSIFICATION OF SUBSTANCE-RELATED THEORETICAL PERSPECTIVES 310–316 Residential Approaches DISORDERS 291–296 Biological Perspectives Psychodynamic Approaches Substance Abuse and Dependence Learning Perspectives Behavioral Approaches Addiction and Other Forms of Compulsive Cognitive Perspectives Relapse-Prevention Training Behavior Psychodynamic Perspectives SUMMING UP 325–326 Racial and Ethnic Differences in Substance Sociocultural Perspectives Use Disorders TREATMENT OF SUBSTANCE ABUSE Pathways to Drug Dependence AND DEPENDENCE 316–325 DRUGS OF ABUSE 296–310 Biological Approaches Depressants Culturally Sensitive Treatment Stimulants of Alcoholism Hallucinogens Nonprofessional Support Groups TRUTH or FICTION T❑ F❑ Heroin accounts for more deaths “Nothing and Nobody Comes Before than any other drug. (p. 291) T❑ F❑ You cannot be psychologically My Coke” dependent on a drug without also being She had just caught me with cocaine again after I had managed to convince her that physically dependent on it. (p. 295) I hadn’t used in over a month. Of course I had been tooting (snorting) almost every T❑ F❑ More teenagers and young adults die day, but I had managed to cover my tracks a little better than usual. So she said to from alcohol-related motor vehicle accidents me that I was going to have to make a choice—either cocaine or her. Before she than from any other cause. (p. 297) finished the sentence, I knew what was coming, so I told her to think carefully about what she was going to say. It was clear to me that there wasn’t a choice. I love my T❑ F❑ It is safe to let someone who has wife, but I’m not going to choose anything over cocaine.
    [Show full text]
  • Case Discussions in Palliative Medicine Levorphanol For
    JOURNAL OF PALLIATIVE MEDICINE Volume 21, Number 3, 2018 Case Discussions in Palliative Medicine ª Mary Ann Liebert, Inc. DOI: 10.1089/jpm.2017.0475 Feature Editor: Craig D. Blinderman Levorphanol for Treatment of Intractable Neuropathic Pain in Cancer Patients Akhila Reddy, MD,1,* Amy Ng, MD,1,* Tarun Mallipeddi,2 and Eduardo Bruera, MD1 Abstract Neuropathic pain in cancer patients is often difficult to treat, requiring a combination of several different pharmacological therapies. We describe two patients with complex neuropathic pain syndromes in the form of phantom limb pain and Brown-Sequard syndrome who did not respond to conventional treatments but re- sponded dramatically to the addition of levorphanol. Levorphanol is a synthetic strong opioid that is a potent N- methyl-d-aspartate receptor antagonist, mu, kappa, and delta opioid receptor agonist, and reuptake inhibitor of serotonin and norepinephrine. It bypasses hepatic first-pass metabolism and thereby not subjected to numerous drug interactions. Levorphanol’s unique profile makes it a potentially attractive opioid in cancer pain man- agement. Keywords: Brown-Sequard syndrome; cancer; cancer pain; levorphanol; neuropathic pain; phantom limb pain Introduction changes, structural reorganization of spinal cord and primary somatosensory cortex, and increased sensitization of spinal ne-third of cancer patients who experience pain cord may be the neurological basis for PLP.8,9 Because the Oalso experience neuropathic pain1 and about half the pathophysiology of PLP is not clearly understood, the treat- patients with cancer who suffer from neuropathic pain also ment options are mainly based on clinical experience.9 There have nociceptive pain.2 Most neuropathic pain exists as are case series showing that tramadol and methadone may be mixed pain in combination with nociceptive pain.
    [Show full text]
  • Local Anesthetic Half Life (In Hours) Lidocaine 1.6 Mepivacaine 1.9 Bupivacaine 353.5 Prilocaine 1.6 Articaine 0.5
    Local Anesthetics • The first local anesthetics History were cocaine and procaine (Novacain) developed in ltlate 1800’s • They were called “esters” because of their chemical composition • Esters had a slow onset and short half life so they did not last long History • Derivatives of esters called “amides” were developed in the 1930’s • Amides had a faster onset and a longer half life so they lasted longer • AidAmides quiklickly repldlaced esters • In dentistry today, esters are only found in topical anesthetics Generic Local Anesthetics • There are five amide anesthetics used in dentistry today. Their generic names are; – lidocaine – mepivocaine – bupivacaine – prilocaine – artica ine • Each is known by at least one brand name Brand Names • lidocaine : Xylocaine, Lignospan, Alphacaine, Octocaine • mepivocaine: Carbocaine, Arestocaine, Isocaine, Polocaine, Scandonest • prilocaine : Citanest, Citanest Forte • bibupivaca ine: MiMarcaine • articaine: Septocaine, Zorcaine About Local Anesthetic (LA) • Local anesthetic (LA) works by binding with sodium channels in neurons preventing depolarization • LA is inactivated at the injection site when it is absorbed into the blood stream and redistributed throughout the body • If enough LA is absorbed, sodium channels in other parts of the body will be blocked, causing systemic side effects About LA • A clinical effect of LAs is dilation blood vessels, speeding up absorption and distribution • To counteract this dilation so anesthesia is prolonged, , a vasoconstrictor is often added to LAs • However, vasoconstrictors have side effects also Metabolism and Excretion • Most amide LAs are metabolized (inactivated) by the liver and excreted by the kidneys. • Prilocaine is partially metabolized by the lungs • Articaine is partially metabolized by enzymes in the bloo d as well as the liver.
    [Show full text]
  • Drug and Alcohol Abuse Prevention Handbook FOREWARD
    Drug and Alcohol Abuse Prevention Handbook FOREWARD Grayson College recognizes that the illicit use of drugs and/or the abuse of alcohol are a persistent health problem of major proportion affecting our society physically, mentally, and socially. Illicit drug use and /or alcohol abuse can adversely affect an individual’s personal life, safety, health, and mental and physical performance. It is the intent of GC to provide employees and students pertinent information related to illicit drug use and/or alcohol abuse in an effort to prevent such harm. GC is committed to promoting and maintaining a work and academic environment that is free from illegal alcohol and drug use and abuse, in accordance with all federal, state, and local laws. Students, employees, and visitors are prohibited from possessing, consuming, manufacturing, dispensing, or being under the influence of alcohol/illegal drugs or engaging in improper self- medication while on college property or college business. Any member of the college community who violates this policy is subject to both prosecution and punishment under federal, state, and local laws to disciplinary proceedings by the college. This alcohol/drug policy is not designed to punish people for seeking rehabilitation. All information about those individuals who voluntarily avail themselves of drug or alcohol counseling or rehabilitation will not be used as a basis for disciplinary action or be used against an individual in any way. College employees and students who violate the alcohol/drug policy shall be informed about and referred to services to assist them in determining whether they are abusing drugs and alcohol or are chemically dependent.
    [Show full text]
  • RUNNING HEAD: Anomalous Experiences and Hypnotic Suggestibility
    Anomalous experiences and hypnotic suggestibility 1 RUNNING HEAD: Anomalous experiences and hypnotic suggestibility Anomalous experiences are more prevalent among highly suggestible individuals who are also highly dissociative David Acunzo1, Etzel Cardeña2, & Devin B. Terhune3* 1 Centre for Mind/Brain Sciences, University of Trento, Rovereto, Italy 2 Department of Psychology, Lund University, Lund, Sweden 3 Department of Psychology, Goldsmiths, University of London, London, UK * Correspondence address: Devin B. Terhune Department of Psychology Goldsmiths, University of London 8 Lewisham Way New Cross, London, UK SE14 6NW [email protected] Word count: 3,186 The data that support the findings of this study are openly available in Open Science Framework at osf.io/cfa3r. Anomalous experiences and hypnotic suggestibility 2 Abstract Introduction: Predictive coding models propose that high hypnotic suggestibility confers a predisposition to hallucinate due to an elevated propensity to weight perceptual beliefs (priors) over sensory evidence. Multiple lines of research corroborate this prediction and demonstrate a link between hypnotic suggestibility and proneness to anomalous perceptual states. However, such effects might be moderated by dissociative tendencies, which seem to account for heterogeneity in high hypnotic suggestibility. We tested the prediction that the prevalence of anomalous experiences would be greater among highly suggestible individuals who are also highly dissociative. Methods: We compared high and low dissociative highly suggestible participants and low suggestible controls on multiple psychometric measures of anomalous experiences. Results: High dissociative highly suggestible participants reliably reported greater anomalous experiences than low dissociative highly suggestible participants and low suggestible controls, who did not significantly differ from each other. Conclusions: These results suggest a greater predisposition to experience anomalous perceptual states among high dissociative highly suggestible individuals.
    [Show full text]
  • Hallucinogens and Dissociative Drugs
    Long-Term Effects of Hallucinogens See page 5. from the director: Research Report Series Hallucinogens and dissociative drugs — which have street names like acid, angel dust, and vitamin K — distort the way a user perceives time, motion, colors, sounds, and self. These drugs can disrupt a person’s ability to think and communicate rationally, or even to recognize reality, sometimes resulting in bizarre or dangerous behavior. Hallucinogens such as LSD, psilocybin, peyote, DMT, and ayahuasca cause HALLUCINOGENS AND emotions to swing wildly and real-world sensations to appear unreal, sometimes frightening. Dissociative drugs like PCP, DISSOCIATIVE DRUGS ketamine, dextromethorphan, and Salvia divinorum may make a user feel out of Including LSD, Psilocybin, Peyote, DMT, Ayahuasca, control and disconnected from their body PCP, Ketamine, Dextromethorphan, and Salvia and environment. In addition to their short-term effects What Are on perception and mood, hallucinogenic Hallucinogens and drugs are associated with psychotic- like episodes that can occur long after Dissociative Drugs? a person has taken the drug, and dissociative drugs can cause respiratory allucinogens are a class of drugs that cause hallucinations—profound distortions depression, heart rate abnormalities, and in a person’s perceptions of reality. Hallucinogens can be found in some plants and a withdrawal syndrome. The good news is mushrooms (or their extracts) or can be man-made, and they are commonly divided that use of hallucinogenic and dissociative Hinto two broad categories: classic hallucinogens (such as LSD) and dissociative drugs (such drugs among U.S. high school students, as PCP). When under the influence of either type of drug, people often report rapid, intense in general, has remained relatively low in emotional swings and seeing images, hearing sounds, and feeling sensations that seem real recent years.
    [Show full text]
  • Neonatal Clonazepam Administration Induced Long-Lasting Changes in GABAA and GABAB Receptors
    International Journal of Molecular Sciences Article Neonatal Clonazepam Administration Induced Long-Lasting Changes in GABAA and GABAB Receptors Hana Kubová 1,* , Zde ˇnkaBendová 2,3 , Simona Moravcová 2,3 , Dominika Paˇcesová 2,3, Luisa Rocha 4 and Pavel Mareš 1 1 Institute of Physiology, Academy of Sciences of the Czech Republic, 14220 Prague, Czech Republic; [email protected] 2 Faculty of Science, Charles University, 12800 Prague, Czech Republic; [email protected] (Z.B.); [email protected] (S.M.); [email protected] (D.P.) 3 National Institute of Mental Health, 25067 Klecany, Czech Republic 4 Pharmacobiology Department, Center of Research and Advanced Studies, Mexico City 14330, Mexico; [email protected] * Correspondence: [email protected]; Tel.: +420-2-4106-2565 Received: 31 March 2020; Accepted: 28 April 2020; Published: 30 April 2020 Abstract: Benzodiazepines (BZDs) are widely used in patients of all ages. Unlike adults, neonatal animals treated with BZDs exhibit a variety of behavioral deficits later in life; however, the mechanisms underlying these deficits are poorly understood. This study aims to examine whether administration of clonazepam (CZP; 1 mg/kg/day) in 7–11-day-old rats affects Gama aminobutyric acid (GABA)ergic receptors in both the short and long terms. Using RT-PCR and quantitative autoradiography, we examined the expression of the selected GABAA receptor subunits (α1, α2, α4, γ2, and δ) and the GABAB B2 subunit, and GABAA, benzodiazepine, and GABAB receptor binding 48 h, 1 week, and 2 months after treatment discontinuation. Within one week after CZP cessation, the expression of the α2 subunit was upregulated, whereas that of the δ subunit was downregulated in both the hippocampus and cortex.
    [Show full text]
  • Monitoring Anesthetic Depth
    ANESTHETIC MONITORING Lyon Lee DVM PhD DACVA MONITORING ANESTHETIC DEPTH • The central nervous system is progressively depressed under general anesthesia. • Different stages of anesthesia will accompany different physiological reflexes and responses (see table below, Guedel’s signs and stages). Table 1. Guedel’s (1937) Signs and Stages of Anesthesia based on ‘Ether’ anesthesia in cats. Stages Description 1 Inducement, excitement, pupils constricted, voluntary struggling Obtunded reflexes, pupil diameters start to dilate, still excited, 2 involuntary struggling 3 Planes There are three planes- light, medium, and deep More decreased reflexes, pupils constricted, brisk palpebral reflex, Light corneal reflex, absence of swallowing reflex, lacrimation still present, no involuntary muscle movement. Ideal plane for most invasive procedures, pupils dilated, loss of pain, Medium loss of palpebral reflex, corneal reflexes present. Respiratory depression, severe muscle relaxation, bradycardia, no Deep (early overdose) reflexes (palpebral, corneal), pupils dilated Very deep anesthesia. Respiration ceases, cardiovascular function 4 depresses and death ensues immediately. • Due to arrival of newer inhalation anesthetics and concurrent use of injectable anesthetics and neuromuscular blockers the above classic signs do not fit well in most circumstances. • Modern concept has two stages simply dividing it into ‘awake’ and ‘unconscious’. • One should recognize and familiarize the reflexes with different physiologic signs to avoid any untoward side effects and complications • The system must be continuously monitored, and not neglected in favor of other signs of anesthesia. • Take all the information into account, not just one sign of anesthetic depth. • A major problem faced by all anesthetists is to avoid both ‘too light’ anesthesia with the risk of sudden violent movement and the dangerous ‘too deep’ anesthesia stage.
    [Show full text]
  • Kiwiherb Valerian Oral Liquid Valerian Root Extract
    PATIENT INFORMATION LEAFLET: stress and to aid sleep, exclusively based on long standing use. 2. Before you take this product DO NOT TAKE this product if you are: • Allergic to Valerian or any other ingredients in this product (see section 6) • Under 18 years of age • Pregnant or breast feeding • Taking medicines known to interact with alcohol (e.g. metronidazole) • Already taking a medicine for sleep or Kiwiherb Valerian Oral Liquid anxiety Valerian Root Extract Taking other medicines Tell your healthcare professional, e.g. a doctor or pharmacist, if you are taking any other medicines Read all of this leaflet carefully because it contains including herbal medicines or medicines that did important information for you. not require a prescription. This medicine is available without prescription. Driving and using machines However you still need to use Kiwiherb Valerian carefully to get the best results from it. This product may cause drowsiness. If affected, do not drive or operate machinery Keep this leaflet. You may want to read it again. Take Special Care with this product Ask your healthcare professional, e.g. a doctor or pharmacist, if you need more information or This product contains alcohol (45% ethanol), i.e. advice. up to 2.25 ml per 5 ml dose, (equivalent to 45 ml beer or 18.8 ml wine), and may be harmful to If the condition worsens or symptoms do not those suffering from alcoholism. improve after 2 weeks, a qualified healthcare professional, e.g. a doctor or pharmacist, should be To be taken into account in pregnant or consulted.
    [Show full text]