IMMEDIATE RELEASE OPIOID DRUGS Codeine, Demerol
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Opioid Tolerance in Methadone Maintenance Treatment: Comparison
Gutwinski et al. Harm Reduction Journal (2016) 13:7 DOI 10.1186/s12954-016-0095-0 RESEARCH Open Access Opioid tolerance in methadone maintenance treatment: comparison of methadone and levomethadone in long-term treatment Stefan Gutwinski*, Nikola Schoofs, Heiner Stuke, Thomas G. Riemer, Corinde E. Wiers and Felix Bermpohl Abstract Background: This study aimed to investigate the development of opioid tolerance in patients receiving long-term methadone maintenance treatment (MMT). Methods: A region-wide cross-sectional study was performed focusing on dosage and duration of treatment. Differences between racemic methadone and levomethadone were examined. All 20 psychiatric hospitals and all 110 outpatient clinics in Berlin licensed to offer MMT were approached in order to reach patients under MMT fulfilling the DSM IV criteria of opiate dependence. In the study, 720 patients treated with racemic methadone or levomethadone gave information on the dosage of treatment. Out of these, 679 patients indicated the duration of MMT. Results: Treatment with racemic methadone was reported for 370 patients (54.5 %), with levomethadone for 309 patients (45.5 %). Mean duration of MMT was 7.5 years. We found a significant correlation between dosage and duration of treatment, both in a conjoint analysis for the two substances racemic methadone and levomethadone and for each substance separately. These effects remained significant when only patients receiving MMT for 1 year or longer were considered, indicating proceeding tolerance development in long-term treatment. When correlations were compared between racemic methadone and levomethadone, no significant difference was found. Conclusions: Our data show a tolerance development under long-term treatment with both racemic methadone and levomethadone. -
Methadone Hydrochloride Tablets, USP) 5 Mg, 10 Mg Rx Only
ROXANE LABORATORIES, INC. Columbus, OH 43216 DOLOPHINE® HYDROCHLORIDE CII (Methadone Hydrochloride Tablets, USP) 5 mg, 10 mg Rx Only Deaths, cardiac and respiratory, have been reported during initiation and conversion of pain patients to methadone treatment from treatment with other opioid agonists. It is critical to understand the pharmacokinetics of methadone when converting patients from other opioids (see DOSAGE AND ADMINISTRATION). Particular vigilance is necessary during treatment initiation, during conversion from one opioid to another, and during dose titration. Respiratory depression is the chief hazard associated with methadone hydrochloride administration. Methadone's peak respiratory depressant effects typically occur later, and persist longer than its peak analgesic effects, particularly in the early dosing period. These characteristics can contribute to cases of iatrogenic overdose, particularly during treatment initiation and dose titration. In addition, cases of QT interval prolongation and serious arrhythmia (torsades de pointes) have been observed during treatment with methadone. Most cases involve patients being treated for pain with large, multiple daily doses of methadone, although cases have been reported in patients receiving doses commonly used for maintenance treatment of opioid addiction. Methadone treatment for analgesic therapy in patients with acute or chronic pain should only be initiated if the potential analgesic or palliative care benefit of treatment with methadone is considered and outweighs the risks. Conditions For Distribution And Use Of Methadone Products For The Treatment Of Opioid Addiction Code of Federal Regulations, Title 42, Sec 8 Methadone products when used for the treatment of opioid addiction in detoxification or maintenance programs, shall be dispensed only by opioid treatment programs (and agencies, practitioners or institutions by formal agreement with the program sponsor) certified by the Substance Abuse and Mental Health Services Administration and approved by the designated state authority. -
Medications to Treat Opioid Use Disorder Research Report
Research Report Revised Junio 2018 Medications to Treat Opioid Use Disorder Research Report Table of Contents Medications to Treat Opioid Use Disorder Research Report Overview How do medications to treat opioid use disorder work? How effective are medications to treat opioid use disorder? What are misconceptions about maintenance treatment? What is the treatment need versus the diversion risk for opioid use disorder treatment? What is the impact of medication for opioid use disorder treatment on HIV/HCV outcomes? How is opioid use disorder treated in the criminal justice system? Is medication to treat opioid use disorder available in the military? What treatment is available for pregnant mothers and their babies? How much does opioid treatment cost? Is naloxone accessible? References Page 1 Medications to Treat Opioid Use Disorder Research Report Discusses effective medications used to treat opioid use disorders: methadone, buprenorphine, and naltrexone. Overview An estimated 1.4 million people in the United States had a substance use disorder related to prescription opioids in 2019.1 However, only a fraction of people with prescription opioid use disorders receive tailored treatment (22 percent in 2019).1 Overdose deaths involving prescription opioids more than quadrupled from 1999 through 2016 followed by significant declines reported in both 2018 and 2019.2,3 Besides overdose, consequences of the opioid crisis include a rising incidence of infants born dependent on opioids because their mothers used these substances during pregnancy4,5 and increased spread of infectious diseases, including HIV and hepatitis C (HCV), as was seen in 2015 in southern Indiana.6 Effective prevention and treatment strategies exist for opioid misuse and use disorder but are highly underutilized across the United States. -
The Opioid Epidemic: What Labs Have to Do with It?
The Opioid Epidemic: What labs have to do with it? Ewa King, Ph.D. Associate Director of Health RIDOH State Health Laboratories Analysis. Answers. Action. www.aphl.org Overview • Overdose trends • Opioids and their effects • Analytical testing approaches • Toxicology laboratories Analysis. Answers. Action. www.aphl.org Opioid overdose crisis 1 Analysis. Answers. Action. www.aphl.org Opioid overdose crisis 2 Analysis. Answers. Action. www.aphl.org Opiates and Opioids • Opiates vs. Opioids • Opiates: Naturally occurring, derived from the poppy plant • Opioids: “Opiate-like” drugs in effects, not chemical structure Includes opiates • Narcotic analgesics • CNS depressants • DEA Schedule I or II controlled substances • Additive effect with other CNS depressant drugs Analysis. Answers. Action. www.aphl.org Efficacy of Opioids • How do opioids work? • Bind with opioid receptors • Brain, spinal cord, GI tract, and throughout the body • Pain, emotion, breathing, movement, and digestion Opioid Receptor Analysis. Answers. Action. www.aphl.org Effects of Opioids Physiological Psychological • Pain relief • Drowsiness/ sedation • Cough suppression • Mental confusion • GI motility • Loss of memory • Respiratory depression • Lethargy/ apathy • Pupillary constriction • Euphoria/ tranquility • Itching • Mood swings • Constipation • Depression • Dependence • Withdrawal • Dependence Analysis. Answers. Action. www.aphl.org Opiates 1 Opiates • Naturally occurring alkaloids Opium • Latex from the opium poppy plant Codeine: • Mild to moderate pain • Antitussive Morphine: • Severe pain • Metabolite of codeine and heroin Analysis. Answers. Action. www.aphl.org Opiates 2 Semi-synthetic Opiates: • Synthesized from a natural opiate Heroin: • Schedule I narcotic Hydrocodone (Vicodin): • Mild to moderate pain • Metabolizes to hydromorphone (Dilaudid) Oxycodone (Oxycontin/Percocet): • Moderate to severe pain • Metabolizes to oxymorphone (Opana) Analysis. Answers. Action. -
Dezocine Exhibits Antihypersensitivity Activities in Neuropathy Through
www.nature.com/scientificreports OPEN Dezocine exhibits antihypersensitivity activities in neuropathy through spinal Received: 09 November 2016 Accepted: 19 January 2017 μ-opioid receptor activation and Published: 23 February 2017 norepinephrine reuptake inhibition Yong-Xiang Wang1, Xiao-Fang Mao1, Teng-Fei Li1, Nian Gong1 & Ma-Zhong Zhang2 Dezocine is the number one opioid painkiller prescribed and sold in China, occupying 44% of the nation’s opioid analgesics market today and far ahead of the gold-standard morphine. We discovered the mechanisms underlying dezocine antihypersensitivity activity and assessed their implications to antihypersensitivity tolerance. Dezocine, given subcutaneously in spinal nerve-ligated neuropathic rats, time- and dose-dependently produced mechanical antiallodynia and thermal antihyperalgesia, significantly increased ipsilateral spinal norepinephrine and serotonin levels, and induced less antiallodynic tolerance than morphine. Its mechanical antiallodynia was partially (40% or 60%) and completely (100%) attenuated by spinal μ-opioid receptor (MOR) antagonism or norepinephrine depletion/α2-adrenoceptor antagonism and combined antagonism of MORs and α2-adenoceptors, respectively. In contrast, antagonism of spinal κ-opioid receptors (KORs) and δ-opioid receptors (DORs) or depletion of spinal serotonin did not significantly alter dezocine antiallodynia. In addition, dezocine- delayed antiallodynic tolerance was accelerated by spinal norepinephrine depletion/α2-adenoceptor antagonism. Thus dezocine produces antihypersensitivity activity through spinal MOR activation and norepinephrine reuptake inhibition (NRI), but apparently not through spinal KOR and DOR activation, serotonin reuptake inhibition or other mechanisms. Our findings reclassify dezocine as the first analgesic of the recently proposed MOR-NRI, and reveal its potential as an alternative to as well as concurrent use with morphine in treating pain. -
Nitrous Oxide in Emergency Medicine Í O’ Sullivan, J Benger
214 ANALGESIA Emerg Med J: first published as 10.1136/emj.20.3.214 on 1 May 2003. Downloaded from Nitrous oxide in emergency medicine Í O’ Sullivan, J Benger ............................................................................................................................. Emerg Med J 2003;20:214–217 Safe and predictable analgesia is required for the identify these zones as there is considerable vari- potentially painful or uncomfortable procedures often ation between people. He also emphasised the importance of the patient’s pre-existing beliefs. If undertaken in an emergency department. The volunteers expect to fall asleep while inhaling characteristics of an ideal analgesic agent are safety, 30% N2O then a high proportion do so. An appro- predictability, non-invasive delivery, freedom from side priate physical and psychological environment increases the actions of N2O and may allow lower effects, simplicity of use, and a rapid onset and offset. doses to be more effective. Unlike many other Newer approaches have threatened the widespread use anaesthetic agents, N2O exhibits an acute toler- of nitrous oxide, but despite its long history this simple ance effect, whereby its potency is greater at induction than after a period of “accommoda- gas still has much to offer. tion”. .......................................................................... MECHANISM OF ACTION “I am sure the air in heaven must be this Some writers have suggested that N2O, like wonder-working gas of delight”. volatile anaesthetics, causes non-specific central nervous system depression. Others, such as 4 Robert Southey, Poet (1774 to 1843) Gillman, propose that N2O acts specifically by interacting with the endogenous opioid system. HISTORY N2O is known to act preferentially on areas of the Nitrous oxide (N2O) is the oldest known anaes- brain and spinal cord that are rich in morphine thetic agent. -
A Review of Unique Opioids and Their Conversions
A Review of Unique Opioids and Their Conversions Jacqueline Cleary, PharmD, BCACP Assistant Professor Albany College of Pharmacy and Health Sciences Adjunct Professor SAGE College of Nursing DISCLOSURES • Kaleo • Remitigate, LLC OBJECTIVES • Compare and contrast unique pharmacotherapy options for the treatment of chronic pain including: methadone, buprenoprhine, tapentadol, and tramadol • Select methadone, buprenorphine, tapentadol, or tramadol based on patient specific factors • Apply appropriate opioid conversion strategies to unique opioids • Understand opioid overdose risk surrounding opioid conversions and the use of unique opioids UNIQUE OPIOIDS METHADONE, BUPRENORPHINE, TRAMADOL, TAPENTADOL METHADONE My favorite drug because….? METHADONE- INDICATIONS • FDA labeled indications – (1) chronic pain (2) detoxification Oral soluble tablets for suspension NOT indicated for chronic pain treatment • Initial inpatient detoxification of opioids by a licensed trained provider with methadone and supportive care is appropriate • Methadone maintenance provider must have special credentialing and training as required by state Outpatient prescription must be for pain ONLY and say “for pain” on RX • Continuation of methadone maintenance from outside provider while patient is inpatient for another condition is appropriate http://cdn.atforum.com/wp-content/uploads/SAMHSA-2015-Guidelines-for-OTPs.pdf MECHANISM OF ACTION • Potent µ-opioid agonist • NMDA receptor antagonist • Norepinephrine reuptake inhibitor • Serotonin reuptake inhibitor ADVERSE EVENTS -
Recommendations for Prescribing Analgesia on Discharge Following Surgery Or Acute Injury Information for Health Practitioners Preparing the Patient for Discharge
Recommendations for prescribing analgesia on discharge following surgery or acute injury Information for health practitioners preparing the patient for discharge better health * better care * better value This booklet ‘Recommendations for prescribing analgesia on discharge following surgery or acute injury: Information for health practitioners preparing the patient for discharge’ is designed to be used in conjunction with the patient booklet titled ‘Pain relief medications following surgery and injury: Information for patients preparing for discharge’. Developed by the Analgesia Management Working Group (AMWG) and made available by the Western Australian Medication Safety Group (WAMSG). For more information on the WAMSG or this booklet go to website www.watag.org.au/wamsg Disclaimer: The information contained in this brochure has been produced as a guide only. It is not intended to be comprehensive and does not take the place of professional medical advice from your doctor, nurse or pharmacist. Contents Background 2 Recommendations for prescribing post-operative analgesia for pain following an acute injury or surgery 4 Precautions when prescribing opioids with other medications 6 Recommendations for prescribing discharge analgesia for pain following an acute injury or surgery 8 Paracetamol 8 Non-Steroidal Anti-inflammatory Drugs (NSAIDs) 8 Opioids 8 Communication to the primary care provider 10 Communication with the patient 10 Appendix 1 – Post-operative and post-intervention analgesia discharge checklist 11 Appendix 2 – Discharge analgesic plan 13 References 14 Recommendations for prescribing analgesia on discharge following surgery or acute injury | 1 Background The WA Medication Safety Group (WAMSG) has identified analgesia management post- surgery or acute injury (specifically managing and ceasing opioids), in the transition period from hospital to home, as a priority safety issue for patients and the community. -
(Methadone Hydrochloride Oral Concentrate USP) and Methadose
NDA 17-116/S-021 Page 3 Methadose™ Oral Concentrate (methadone hydrochloride oral concentrate USP) and Methadose™ Sugar-Free Oral Concentrate (methadone hydrochloride oral concentrate USP) dye-free, sugar-free, unflavored CII Rx only FOR ORAL USE ONLY Deaths have been reported during initiation of methadone treatment for opioid dependence. In some cases, drug interactions with other drugs, both licit and illicit, have been suspected. However, in other cases, deaths appear to have occurred due to the respiratory or cardiac effects of methadone and too-rapid titration without appreciation for the accumulation of methadone over time. It is critical to understand the pharmacokinetics of methadone and to exercise vigilance during treatment initiation and dose titration (see DOSAGE AND ADMINISTRATION). Patients must also be strongly cautioned against self- medicating with CNS depressants during initiation of methadone treatment. Respiratory depression is the chief hazard associated with methadone hydrochloride administration. Methadone's peak respiratory depressant effects typically occur later, and persist longer than its peak analgesic effects, particularly in the early dosing period. These characteristics can contribute to cases of iatrogenic overdose, particularly during treatment initiation and dose titration. Cases of QT interval prolongation and serious arrhythmia (torsades de pointes) have been observed during treatment with methadone. Most cases involve patients being treated for pain with large, multiple daily doses of methadone, NDA -
Hydromorphone
Hydromorphone WHAT IS HYDROMORPHONE? sedation, and reduced anxiety. It may also cause Hydromorphone belongs to a class of drugs mental clouding, changes in mood, nervousness, called “opioids,” which includes morphine. It and restlessness. It works centrally (in the has an analgesic potency of two to eight times brain) to reduce pain and suppress cough. greater than that of morphine and has a rapid Hydromorphone use is associated with both onset of action. physiological and psychological dependence. WHAT IS ITS ORIGIN? What is its effect on the body? Hydromorphone is legally manufactured and Hydromorphone may cause: distributed in the United States. However, • Constipation, pupillary constriction, urinary retention, users can obtain hydromorphone from nausea, vomiting, respiratory depression, dizziness, forged prescriptions, “doctor-shopping,” impaired coordination, loss of appetite, rash, slow or theft from pharmacies, and from friends and rapid heartbeat, and changes in blood pressure acquaintances. What are its overdose effects? What are the street names? Acute overdose of hydromorphone can produce: Common street names include: Severe respiratory depression, drowsiness • D, Dillies, Dust, Footballs, Juice, and Smack progressing to stupor or coma, lack of skeletal muscle tone, cold and clammy skin, constricted What does it look like? pupils, and reduction in blood pressure and heart Hydromorphone comes in: rate • Tablets, capsules, oral solutions, and injectable Severe overdose may result in death due to formulations respiratory depression. How is it abused? Which drugs cause similar effects? Users may abuse hydromorphone tablets by Drugs that have similar effects include: ingesting them. Injectable solutions, as well as • Heroin, morphine, hydrocodone, fentanyl, and tablets that have been crushed and dissolved oxycodone in a solution may be injected as a substitute for heroin. -
Opioid Receptorsreceptors
OPIOIDOPIOID RECEPTORSRECEPTORS defined or “classical” types of opioid receptor µ,dk and . Alistair Corbett, Sandy McKnight and Graeme Genes encoding for these receptors have been cloned.5, Henderson 6,7,8 More recently, cDNA encoding an “orphan” receptor Dr Alistair Corbett is Lecturer in the School of was identified which has a high degree of homology to Biological and Biomedical Sciences, Glasgow the “classical” opioid receptors; on structural grounds Caledonian University, Cowcaddens Road, this receptor is an opioid receptor and has been named Glasgow G4 0BA, UK. ORL (opioid receptor-like).9 As would be predicted from 1 Dr Sandy McKnight is Associate Director, Parke- their known abilities to couple through pertussis toxin- Davis Neuroscience Research Centre, sensitive G-proteins, all of the cloned opioid receptors Cambridge University Forvie Site, Robinson possess the same general structure of an extracellular Way, Cambridge CB2 2QB, UK. N-terminal region, seven transmembrane domains and Professor Graeme Henderson is Professor of intracellular C-terminal tail structure. There is Pharmacology and Head of Department, pharmacological evidence for subtypes of each Department of Pharmacology, School of Medical receptor and other types of novel, less well- Sciences, University of Bristol, University Walk, characterised opioid receptors,eliz , , , , have also been Bristol BS8 1TD, UK. postulated. Thes -receptor, however, is no longer regarded as an opioid receptor. Introduction Receptor Subtypes Preparations of the opium poppy papaver somniferum m-Receptor subtypes have been used for many hundreds of years to relieve The MOR-1 gene, encoding for one form of them - pain. In 1803, Sertürner isolated a crystalline sample of receptor, shows approximately 50-70% homology to the main constituent alkaloid, morphine, which was later shown to be almost entirely responsible for the the genes encoding for thedk -(DOR-1), -(KOR-1) and orphan (ORL ) receptors. -
Injectable Anesthesia in South American Camelids
INJECTABLE ANESTHESIA IN SOUTH AMERICAN CAMELIDS Thomas Riebold DVM, Diplomate ACVAA Veterinary Teaching Hospital College of Veterinary Medicine Oregon State University Corvallis, Oregon 97331 INTRODUCTION Interest in llamas, and more recently in alpacas, as pets and as breeding and pack animals has led to increased demand for veterinary services for them. While they have some unique species characteristics regarding anesthesia, many of the principles and techniques used in food animal and equine anesthesia also apply to South American camelids. Except for differences in size, anesthetic management of alpacas and llamas is similar. Much like there are species differences between cattle, sheep, and goats in their response to xylazine, it does appear that alpacas require higher doses of sedatives, approximately 10-20%, to obtain the same response that lower doses of sedatives would obtain in llamas. PREANESTHETIC CONSIDERATIONS Consideration for preanesthetic preparation includes fasting, assessment of hematologic and blood chemistry values, venous catheterization, and estimation of bodyweight. The camelid has a stomach divided into three compartments. Therefore, potential complications similar to those of domestic ruminants, regurgitation and aspiration pneumonia, exist during anesthesia. Abdominal tympany as it occurs in anesthetized domestic ruminants does not appear to occur in anesthetized camelids. It is recommended that the animals be fasted 12-18 hours and deprived of water for 8-12 hours. In nonelective cases, this is often not possible and precautions should be taken to avoid aspiration of gastric fluid and ingesta. Fasting neonatal camelids is not advisable because hypoglycemia may result. As in other species, hematologic and blood chemistry values are determined before anesthesia.